diff --git a/_locales/es/messages.json b/_locales/es/messages.json
index 84ca78a6..f0436794 100644
--- a/_locales/es/messages.json
+++ b/_locales/es/messages.json
@@ -673,6 +673,222 @@
     "message": "Mostrar número de estilos activos",
     "description": "Label (must be very short) for the checkbox in the toolbar button context menu controlling toolbar badge text."
   },
+  "meta_invalidCheckboxDefault": {
+    "message": "@var checkbox no válida: el valor debe ser 0 o 1",
+    "description": "Error displayed when the value of @var checkbox is invalid"
+  },
+  "meta_invalidColor": {
+    "message": "@var color no válido: $color$ no es un color",
+    "description": "Error displayed when the value of @var color is invalid",
+    "placeholders": {
+      "color": {
+        "content": "$1"
+      }
+    }
+  },
+  "meta_invalidRange": {
+    "message": "@var $type$no válido: debe ser un número o un array",
+    "description": "Error displayed when the value of @var range or @var number is invalid",
+    "placeholders": {
+      "type": {
+        "content": "$1"
+      }
+    }
+  },
+  "meta_invalidRangeMultipleUnits": {
+    "message": "@var $type$ no válido: se han definido múltiples unidades",
+    "description": "Error displayed when the value of @var range or @var number is invalid",
+    "placeholders": {
+      "type": {
+        "content": "$1"
+      }
+    }
+  },
+  "meta_invalidRangeTooManyValues": {
+    "message": "@var $type$ no válido: el array contiene demasiados elementos",
+    "description": "Error displayed when the value of @var range or @var number is invalid",
+    "placeholders": {
+      "type": {
+        "content": "$1"
+      }
+    }
+  },
+  "meta_invalidRangeValue": {
+    "message": "@var $type$ no válido: los elementos en el array deben ser número, cadena o nulo",
+    "description": "Error displayed when the value of @var range or @var number is invalid",
+    "placeholders": {
+      "type": {
+        "content": "$1"
+      }
+    }
+  },
+  "meta_invalidRangeDefault": {
+    "message": "@var $type$ no válido: el valor por defecto es nulo",
+    "description": "Error displayed when the value of @var range or @var number is invalid",
+    "placeholders": {
+      "type": {
+        "content": "$1"
+      }
+    }
+  },
+  "meta_invalidRangeMin": {
+    "message": "@var $type$ no válido: el valor por defecto es inferior al mínimo",
+    "description": "Error displayed when the value of @var range or @var number is invalid",
+    "placeholders": {
+      "type": {
+        "content": "$1"
+      }
+    }
+  },
+  "meta_invalidRangeMax": {
+    "message": "@var $type$ no válido: el valor por defecto es mayor al máximo",
+    "description": "Error displayed when the value of @var range or @var number is invalid",
+    "placeholders": {
+      "type": {
+        "content": "$1"
+      }
+    }
+  },
+  "meta_invalidRangeStep": {
+    "message": "@var $type$ no válido: el valor por defecto no es un múltiplo del intervalo",
+    "description": "Error displayed when the value of @var range or @var number is invalid",
+    "placeholders": {
+      "type": {
+        "content": "$1"
+      }
+    }
+  },
+  "meta_invalidRangeUnits": {
+    "message": "@var $type$ no válido: '$units$' no es una unidad válida",
+    "description": "Error displayed when the value of @var range or @var number is invalid",
+    "placeholders": {
+      "type": {
+        "content": "$1"
+      },
+      "units": {
+        "content": "$2"
+      }
+    }
+  },
+  "meta_invalidSelect": {
+    "message": "@var select no válido: el valor por defecto debe ser un array o un objeto",
+    "description": "Error displayed when the value of @var select is invalid"
+  },
+  "meta_invalidSelectValue": {
+    "message": "@var select no válido: los valores dentro del array/objeto deben ser una cadena",
+    "description": "Error displayed when the value of @var select is invalid"
+  },
+  "meta_invalidSelectEmptyOptions": {
+    "message": "@var select no válido: la lista de opciones está vacía",
+    "description": "Error displayed when the value of @var select is invalid"
+  },
+  "meta_invalidSelectLabel": {
+    "message": "@var select no válido: la etiqueta de opción está vacía",
+    "description": "Error displayed when the value of @var select is invalid"
+  },
+  "meta_invalidSelectMultipleDefaults": {
+    "message": "@var select no válido: se han definido múltiples opciones por defecto",
+    "description": "Error displayed when the value of @var select is invalid"
+  },
+  "meta_invalidSelectNameDuplicated": {
+    "message": "@var select no válido: el nombre de la opción está duplicado",
+    "description": "Error displayed when the value of @var select is invalid"
+  },
+  "meta_invalidSelectValueMismatch": {
+    "message": "@var select no válido: no existe en la lista de opciones",
+    "description": "Error displayed when the value of @var select is invalid"
+  },
+  "meta_invalidURLProtocol": {
+    "message": "Protocolo URL no válido. Sólo se permiten http y https: $protocol$",
+    "description": "Error displayed when the protocol of the URL is invalid",
+    "placeholders": {
+      "protocol": {
+        "content": "$1"
+      }
+    }
+  },
+  "meta_invalidVersion": {
+    "message": "Número de versión no válido. El valor no coincide con el patrón SemVer: $version$",
+    "description": "Error displayed when @version is invalid",
+    "placeholders": {
+      "version": {
+        "content": "$1"
+      }
+    }
+  },
+  "meta_invalidNumber": {
+    "message": "Se espera un número",
+    "description": "Error displayed when the value is expected to be a number"
+  },
+  "meta_invalidString": {
+    "message": "Se espera una cadena de texto entre comillas",
+    "description": "Error displayed when the value is expected to be a quoted string"
+  },
+  "meta_invalidWord": {
+    "message": "Se espera una palabra",
+    "description": "Error displayed when the value is expected to be a word"
+  },
+  "meta_missingChar": {
+    "message": "Se esperan caracteres: $chars$",
+    "description": "Error displayed when the value is expected to be some characters",
+    "placeholders": {
+      "chars": {
+        "content": "$1"
+      }
+    }
+  },
+  "meta_missingEOT": {
+    "message": "Se esperan datos EOT",
+    "description": "Error displayed when the value is expected to be an EOT list"
+  },
+  "meta_missingMandatory": {
+    "message": "Faltan metadatos obligatorios: $keys$",
+    "description": "Error displayed when mandatory keys are missing",
+    "placeholders": {
+      "keys": {
+        "content": "$1"
+      }
+    }
+  },
+  "meta_unknownJSONLiteral": {
+    "message": "JSON no válido: $literal$ no es un literal válido de JSON",
+    "description": "Error displayed when JSON value is invalid",
+    "placeholders": {
+      "literal": {
+        "content": "$1"
+      }
+    }
+  },
+  "meta_unknownMeta": {
+    "message": "Metadatos desconocidos: $key$",
+    "description": "Error displayed when unknown metadata is parsed",
+    "placeholders": {
+      "key": {
+        "content": "$1"
+      }
+    }
+  },
+  "meta_unknownVarType": {
+    "message": "Tipo de @$varkey$ desconocido: $vartype$",
+    "description": "Error displayed when unknown variable type is parsed",
+    "placeholders": {
+      "varkey": {
+        "content": "$1"
+      },
+      "vartype": {
+        "content": "$2"
+      }
+    }
+  },
+  "meta_unknownPreprocessor": {
+    "message": "@preprocessor desconocido: $preprocessor$",
+    "description": "Error displayed when unknown @preprocessor is parsed",
+    "placeholders": {
+      "preprocessor": {
+        "content": "$1"
+      }
+    }
+  },
   "noStylesForSite": {
     "message": "No hay estilos instalados para este sitio.",
     "description": "Text displayed when no styles are installed for the current site"
@@ -1171,6 +1387,10 @@
     "message": "Stylus puede acceder a las URLs file:// sólo si activa la casilla correspondiente para la extensión Stylus en la página chrome://extensions.",
     "description": "Note in the toolbar popup for file:// URLs"
   },
+  "InaccessibleFileHint": {
+    "message": "Stylus no puede acceder a algunos tipos de archivos (p. ej. archivos pdf y json).",
+    "description": "Note in the toolbar popup for some file types that cannot be accessed"
+  },
   "updateAllCheckSucceededNoUpdate": {
     "message": "No se encontraron actualizaciones.",
     "description": "Text that displays when an update all check completed and no updates are available"
@@ -1259,5 +1479,53 @@
   "writeStyleForURL": {
     "message": "este URL",
     "description": "Text for link in toolbar pop-up to write a new style for the current URL"
+  },
+  "syncDropboxStyles": {
+    "message": "Exportar a Dropbox",
+    "description": ""
+  },
+  "retrieveDropboxSync": {
+    "message": "Importar desde Dropbox",
+    "description": ""
+  },
+  "overwriteFileExport": {
+    "message": "¿Desea sobrescribir un archivo existente?",
+    "description": ""
+  },
+  "exportSavedSuccess": {
+    "message": "Archivo guardado correctamente",
+    "description": ""
+  },
+  "noFileToImport": {
+    "message": "Para importar sus estilos, debe exportarlos primero.",
+    "description": ""
+  },
+  "connectingDropbox": {
+    "message": "Conectando a Dropbox....",
+    "description": ""
+  },
+  "connectingDropboxNotAllowed": {
+    "message": "La conexión a Dropbox sólo está disponible en aplicaciones instaladas directamente desde la tienda web.",
+    "description": ""
+  },
+  "gettingStyles": {
+    "message": "Obteniendo todos los estilos...",
+    "description": ""
+  },
+  "zipStyles": {
+    "message": "Comprimiendo los estilos...",
+    "description": ""
+  },
+  "unzipStyles": {
+    "message": "Descomprimiendo los estilos...",
+    "description": ""
+  },
+  "readingStyles": {
+    "message": "Leyendo los estilos...",
+    "description": ""
+  },
+  "uploadingFile": {
+    "message": "Subiendo el archivo....",
+    "description": ""
   }
 }
\ No newline at end of file
diff --git a/_locales/sv/messages.json b/_locales/sv/messages.json
index 0e5debba..54b3f80c 100644
--- a/_locales/sv/messages.json
+++ b/_locales/sv/messages.json
@@ -64,6 +64,14 @@
     "message": "Verkställ alla uppdateringar",
     "description": "Label for the button to apply all detected updates"
   },
+  "backupButtons": {
+    "message": "Säkerhetskopiera",
+    "description": "Heading for backup"
+  },
+  "backupMessage": {
+    "message": "Välj en fil eller dra och släpp till den här sidan.",
+    "description": "Message for backup"
+  },
   "bckpInstStyles": {
     "message": "Exportera stilar",
     "description": ""
@@ -80,6 +88,10 @@
     "message": "Letar...",
     "description": "Text to display when checking a style for an update"
   },
+  "cm_autocompleteOnTyping": {
+    "message": "Komplettera automatiskt när du skriver",
+    "description": "Label for the checkbox in the style editor."
+  },
   "cm_indentWithTabs": {
     "message": "Använd tabbar med smart indrag",
     "description": "Label for the checkbox controlling tabs with smart indentation option for the style editor."
@@ -104,10 +116,22 @@
     "message": "Tema",
     "description": "Label for the style editor's CSS theme."
   },
+  "confirmCancel": {
+    "message": "Avbryt",
+    "description": ""
+  },
   "confirmClose": {
     "message": "Stäng",
     "description": "'Close' button in a confirm dialog"
   },
+  "confirmDefault": {
+    "message": "Använd standard",
+    "description": "'Set to default' button in a confirm dialog"
+  },
+  "confirmDelete": {
+    "message": "Ta bort",
+    "description": ""
+  },
   "confirmNo": {
     "message": "Nej",
     "description": "'No' button in a confirm dialog"
@@ -116,6 +140,10 @@
     "message": "Spara",
     "description": "'Save' button in a confirm dialog"
   },
+  "confirmStop": {
+    "message": "Stoppa",
+    "description": "'Stop' button in a confirm dialog"
+  },
   "confirmYes": {
     "message": "Ja",
     "description": "'Yes' button in a confirm dialog"
@@ -124,6 +152,10 @@
     "message": "Ett fel inträffades vid hanteringen av Stylus-databasen. Skulle du vilja besöka en sida med eventuella lösningar?",
     "description": "Prompt when a DB error is encountered"
   },
+  "defaultTheme": {
+    "message": "standard",
+    "description": "Default CodeMirror CSS theme option on the edit style page"
+  },
   "deleteStyleConfirm": {
     "message": "Är du säker på att du vill ta bort denna stil?",
     "description": "Confirmation before deleting a style"
@@ -144,6 +176,14 @@
     "message": "Inaktivera",
     "description": "Label for the button to disable a style"
   },
+  "dragDropMessage": {
+    "message": "Släpp din säkerhetskopieringsfil någonstans på den här sidan för att importera.",
+    "description": "Drag'n'drop message"
+  },
+  "editDeleteText": {
+    "message": "Ta bort",
+    "description": "Label for the context menu item in the editor to delete selected text"
+  },
   "editGotoLine": {
     "message": "Gå till rad (eller rad:kol)",
     "description": "Go to line or line:column on Ctrl-G in style code editor"
@@ -173,6 +213,14 @@
     "message": "Exportera",
     "description": "Label for the button to export a style ('edit' page) or all styles ('manage' page)"
   },
+  "externalFeedback": {
+    "message": "Återkoppling",
+    "description": "Label for the external link to send feedback for the style"
+  },
+  "externalHomepage": {
+    "message": "Webbplats",
+    "description": "Label for the external link to style's homepage"
+  },
   "externalUsercssDocument": {
     "message": "Dokumentation för Usercss",
     "description": "Label for the external link to usercss documentation"
@@ -213,10 +261,22 @@
     "message": "Återställ",
     "description": "Used in various parts of UI to indicate that something may be reset to its original state"
   },
+  "genericSavedMessage": {
+    "message": "Sparad",
+    "description": "Used in various parts of the UI to indicate that something was saved"
+  },
   "helpAlt": {
     "message": "Hjälp",
     "description": "Alternate text for help buttons"
   },
+  "helpKeyMapCommand": {
+    "message": "Skriv ett kommandonamn",
+    "description": "Placeholder text of inputbox in keymap help popup on the edit style page. Must be very short"
+  },
+  "helpKeyMapHotkey": {
+    "message": "Tryck på en snabbtangent",
+    "description": "Placeholder text of inputbox in keymap help popup on the edit style page. Must be very short"
+  },
   "importAppendLabel": {
     "message": "Lägg till i stil",
     "description": "Label for the button to import a style and append to the existing sections"
@@ -233,10 +293,34 @@
     "message": "Ersätt stil",
     "description": "Label for the button to import and overwrite current style"
   },
+  "importReportLegendAdded": {
+    "message": "tillagd",
+    "description": "Text after the number of styles added in the report shown after importing styles"
+  },
+  "importReportLegendIdentical": {
+    "message": "identisk hoppade över",
+    "description": "Text after the number of styles skipped due to being identical to the already installed ones in the report shown after importing styles"
+  },
+  "importReportLegendUpdatedCode": {
+    "message": "uppdaterad kod",
+    "description": "Text after the number of styles with updated code (meta info is unchanged) in the report shown after importing styles"
+  },
+  "importReportUnchanged": {
+    "message": "Ingenting förändrades.",
+    "description": "Message in the report shown after importing styles"
+  },
   "installUpdate": {
     "message": "Installera uppdatering",
     "description": "Label for the button to install an update for a single style"
   },
+  "installUpdateFromLabel": {
+    "message": "Sök efter uppdateringar",
+    "description": "Label for the checkbox to save current URL for update check"
+  },
+  "license": {
+    "message": "Licens",
+    "description": "Label for the license"
+  },
   "linkGetHelp": {
     "message": "Hjälp",
     "description": "Homepage link text on the manage page e.g. https://add0n.com/stylus.html#features with chat/FAQ/intro/info"
@@ -249,6 +333,14 @@
     "message": "Översätt",
     "description": "Transifex link text on the manage page"
   },
+  "linterJSONError": {
+    "message": "Ogiltigt JSON-format",
+    "description": "Setting linter config with invalid JSON"
+  },
+  "linterRulesLink": {
+    "message": "Se en fullständig lista över regler",
+    "description": "Stylelint or CSSLint rules label added immediately before a link"
+  },
   "manageFavicons": {
     "message": "Ikoner i 'Gäller för' kolumnen",
     "description": "Label for the checkbox that toggles applies-to favicons in the new UI on manage page"
@@ -289,6 +381,10 @@
     "message": "Endast lokalt skapade stilar",
     "description": "Checkbox to show only locally created styles i.e. non-updatable"
   },
+  "manageOnlyLocalTooltip": {
+    "message": "(stilarna som inte är installerade via en userstyles.org sida)",
+    "description": "Tooltip for the checkbox to show only locally created styles i.e. non-updatable"
+  },
   "manageOnlyNonUsercss": {
     "message": "Endast icke-Usercss stilar",
     "description": "Checkbox to show only non-Usercss (standard) styles"
@@ -309,6 +405,10 @@
     "message": "Hantera installerade stilar",
     "description": "Link to open the manage page."
   },
+  "openOptionsManage": {
+    "message": "Alternativ UI",
+    "description": "Go to Options UI"
+  },
   "openOptionsPopup": {
     "message": "Alternativ",
     "description": "Go to Options UI"
@@ -317,10 +417,34 @@
     "message": "Öppna stilhanteraren",
     "description": "Label for the style maanger opener in the browser action context menu."
   },
+  "optionsActions": {
+    "message": "Åtgärder",
+    "description": ""
+  },
+  "optionsAdvanced": {
+    "message": "Avancerat",
+    "description": ""
+  },
+  "optionsAdvancedContextDelete": {
+    "message": "Lägg till \"Ta bort\" i redigeringsmenyn",
+    "description": ""
+  },
+  "optionsAdvancedExposeIframes": {
+    "message": "Exponera Iframes via HTML[stylus-iframe]",
+    "description": ""
+  },
   "optionsAdvancedNewStyleAsUsercss": {
     "message": "Skriv ny stil som Usercss",
     "description": ""
   },
+  "optionsBadgeDisabled": {
+    "message": "Bakgrundsfärg när inaktiverad",
+    "description": ""
+  },
+  "optionsBadgeNormal": {
+    "message": "Bakgrundsfärg",
+    "description": ""
+  },
   "optionsCheck": {
     "message": "Uppdatera stilar",
     "description": ""
@@ -329,14 +453,30 @@
     "message": "Leta efter och installera alla tillgängliga uppdateringar",
     "description": ""
   },
+  "optionsCustomizePopup": {
+    "message": "Poppupp",
+    "description": ""
+  },
+  "optionsCustomizeUpdate": {
+    "message": "Uppdateringar",
+    "description": ""
+  },
   "optionsHeading": {
     "message": "Alternativ",
     "description": "Heading for options section on manage page."
   },
+  "optionsOpen": {
+    "message": "Öppna",
+    "description": ""
+  },
   "optionsOpenManager": {
     "message": "Hantera stilar",
     "description": ""
   },
+  "optionsPopupWidth": {
+    "message": "Poppuppbredd (i pixlar)",
+    "description": ""
+  },
   "optionsReset": {
     "message": "Återställ alternativen till standard",
     "description": ""
@@ -345,6 +485,14 @@
     "message": "Återställ alternativ",
     "description": ""
   },
+  "optionsSubheading": {
+    "message": "Mer alternativ",
+    "description": "Subheading for options section on manage page."
+  },
+  "optionsUpdateInterval": {
+    "message": "Userstyle automatisk uppdateringsintervall i timmar (ange 0 för att inaktivera)",
+    "description": ""
+  },
   "paginationNext": {
     "message": "Nästa sida",
     "description": "Tooltip for the '->' (next page) button in search results"
@@ -417,6 +565,10 @@
     "message": "Regexp:en är ogiltig",
     "description": "Validation message for a bad regexp in a style"
   },
+  "styleBeautify": {
+    "message": "Försköna",
+    "description": "Label for the CSS-beautifier button on the edit style page"
+  },
   "styleCancelEditLabel": {
     "message": "Återgå till hantera",
     "description": "Label for cancel button for style editing"
@@ -454,6 +606,22 @@
     "message": "Mozilla-format",
     "description": "Heading for the section with buttons to import/export Mozilla format of the style"
   },
+  "styleRegexpInvalidExplanation": {
+    "message": "Några \"regexp()\"-regler som inte alls kunde sammanställas.",
+    "description": ""
+  },
+  "styleRegexpTestFull": {
+    "message": "Matchande flikar",
+    "description": "RegExp test report: label for the fully matching expressions"
+  },
+  "styleRegexpTestNone": {
+    "message": "Inga matchande flikar",
+    "description": "RegExp test report: label for expressions that didn't match any tabs"
+  },
+  "styleRegexpTestTitle": {
+    "message": "Lista över matchande öppnade flikar (klicka på webbadressen för att fokusera på dess flik)",
+    "description": "RegExp test report: title of the report"
+  },
   "styleSaveLabel": {
     "message": "Spara",
     "description": "Label for save button for style editing"
@@ -479,6 +647,14 @@
     "message": "Stylus fungerar inte på sidor som denna.",
     "description": "Note in the toolbar pop-up when on a URL Stylus can't affect"
   },
+  "stylusUnavailableForURLdetails": {
+    "message": "Som en säkerhetsåtgärd förbjuder webbläsaren tillägg från att påverka dess inbyggda sidor (som chrome://version, den vanliga nya fliksidan från Chrome 61, about:addons och så vidare) samt andra tilläggssidor. Varje webbläsare begränsar också tillgången till sina egna tilläggsgalleri (som Chrome Web Store eller AMO).",
+    "description": "Sub-note in the toolbar pop-up when on a URL Stylus can't affect"
+  },
+  "toggleStyle": {
+    "message": "Växla stil",
+    "description": "Label for the checkbox to enable/disable a style"
+  },
   "undo": {
     "message": "Ångra",
     "description": "Button label"
@@ -504,6 +680,14 @@
     "message": "Uppdateringen misslyckades: server onåbar.",
     "description": "Text that displays when an update check failed because the update server is unreachable"
   },
+  "updateCheckManualUpdateHint": {
+    "message": "Att tvinga en uppdatering kommer att skriva över alla lokala ändringar.",
+    "description": "Additional text displayed when an update check skipped updating the style to avoid losing local modifications"
+  },
+  "updateCheckSkippedLocallyEdited": {
+    "message": "Denna stil redigerades lokalt.",
+    "description": "Text that displays when an update check skipped updating the style to avoid losing local modifications"
+  },
   "updateCheckSucceededNoUpdate": {
     "message": "Stilen är fullt uppdaterad.",
     "description": "Text that displays when an update check completed and no update is available"
@@ -512,6 +696,10 @@
     "message": "Uppdatering slutförd.",
     "description": "Text that displays when an update completed"
   },
+  "updatesCurrentlyInstalled": {
+    "message": "Uppdateringar installerade:",
+    "description": "Text that displays when an update is installed on options page. Followed by the number of currently installed updates."
+  },
   "writeStyleFor": {
     "message": "Skriv stil för:",
     "description": "Label for toolbar pop-up that precedes the links to write a new style"