diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index 604d354d..266ec1c9 100644
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -93,7 +93,8 @@
     "description": "Message for backup"
   },
   "bckpInstStyles": {
-    "message": "Export styles"
+    "message": "Local device",
+    "description": "Selected option to backup indicated styles to local device/drive"
   },
   "checkAllUpdates": {
     "message": "Check all styles for updates",
@@ -1238,6 +1239,10 @@
     "message": "Click to open the filter, search and bulk actions panel",
     "description": "Text for button to apply the selected action"
   },
+  "bulkActionsError": {
+    "message": "Choose at least one style",
+    "description": "Error displayed in a tooltip when the user attempts to apply an action with no styles selected"
+  },
   "sectionAdd": {
     "message": "Add another section",
     "description": "Label for the button to add a section"
diff --git a/js/prefs.js b/js/prefs.js
index b98dd1fe..4f1f6f12 100644
--- a/js/prefs.js
+++ b/js/prefs.js
@@ -27,6 +27,7 @@ self.prefs = self.INJECTED === 1 ? self.prefs : (() => {
     'manage.onlyEnabled.invert': false, // display only disabled styles
     'manage.onlyLocal.invert': false,   // display only externally installed styles
     'manage.onlyUsercss.invert': false, // display only non-usercss (standard) styles
+    'manage.export.destination': 'local', // default export destination (local or dropbox)
 
     'manage.newUI.favicons': false, // show favicons for the sites in applies-to
     'manage.newUI.faviconsGray': true, // gray out favicons
diff --git a/manage.html b/manage.html
index 8b7dfa14..25971909 100644
--- a/manage.html
+++ b/manage.html
@@ -175,7 +175,7 @@
 
       <div class="dropdown-content">
         <a href="#" class="unfile-all-styles" i18n-text="retrieveBckp"></a>
-        <a href="#" class="sync-dropbox-import" i18n-text="retrieveDropboxSync"></a>
+        <a href="#" class="sync-dropbox-import" i18n-text="syncDropboxStyles"></a>
       </div>
     </div>
   </template>
@@ -360,7 +360,7 @@
               </svg>
             </label>
             <span class="select-resizer">
-              <select id="manage.onlyLocal.invert" i18n-data-title="manageOnlyLocalTooltip">
+              <select id="manage.onlyLocal.invert" class="tt-s" i18n-data-title="manageOnlyLocalTooltip">
                 <option i18n-text="manageOnlyLocal" value="false"></option>
                 <option i18n-text="manageOnlyExternal" value="true"></option>
               </select>
@@ -430,7 +430,7 @@
         </select>
         <svg class="svg-icon select-arrow"><use xlink:href="#svg-icon-select-arrow"/></svg>
       </span>
-      <button id="bulk-actions-apply" i18n-text="bulkActionsApply">
+      <button id="bulk-actions-apply" i18n-text="bulkActionsApply" class="tt-e" disabled>
         <span id="update-progress"></span>
       </button>
       <span id="bulk-info">
@@ -445,9 +445,9 @@
         <span data-bulk="export" class="dropdown export hidden">
           Export to:
           <span class="select-resizer">
-            <select id="manage.onlyEnabled.invert">
-              <option id="file-all-styles" i18n-text="bckpInstStyles"></option>
-              <option id="sync-dropbox-export" i18n-text="syncDropboxStyles"></option>
+            <select id="manage.export.destination">
+              <option value="local" i18n-text="bckpInstStyles"></option>
+              <option value="dropbox" i18n-text="syncDropboxStyles"></option>
             </select>
             <svg class="svg-icon select-arrow"><use xlink:href="#svg-icon-select-arrow"/></svg>
           </span>
diff --git a/manage/bulk-actions.js b/manage/bulk-actions.js
index e68bd07b..08283a2c 100644
--- a/manage/bulk-actions.js
+++ b/manage/bulk-actions.js
@@ -1,4 +1,5 @@
-/* global $ $$ handleEvent installed exportToFile checkUpdateAll */
+/* global $ $$ API t prefs handleEvent installed exportToFile checkUpdateAll exportDropbox
+   messageBox */
 /* exported bulk */
 'use strict';
 
@@ -13,14 +14,13 @@ const bulk = {
   handleSelect: event => {
     event.preventDefault();
     $$('[data-bulk]').forEach(el => el.classList.add('hidden'));
-console.log('select', this.value)
+
     switch (event.target.value) {
       case 'enable':
         break;
       case 'disable':
         break;
       case 'export':
-        console.log('got here')
         $('[data-bulk="export"]').classList.remove('hidden');
         break;
       case 'update':
@@ -51,10 +51,14 @@ console.log('select', this.value)
         });
         break;
       }
-      case 'export':
+      case 'export': {
         styles = entries.map(entry => entry.styleMeta);
-        exportToFile(styles);
-        break;
+        const destination = prefs.get('manage.export.destination');
+        if (destination === 'dropbox') {
+          return exportDropbox(styles);
+        }
+        return exportToFile(styles);
+      }
       case 'update':
         checkUpdateAll(entries); // TO DO
         break;
@@ -99,6 +103,12 @@ console.log('select', this.value)
       }
       const count = $$('.entry-filter-toggle').filter(entry => entry.checked).length;
       $('#bulk-filter-count').textContent = count || '';
+
+      if (count > 0 && $('#bulk-actions-select').value !== '') {
+        $('#bulk-actions-apply').removeAttribute('disabled');
+      } else {
+        $('#bulk-actions-apply').setAttribute('disabled', true);
+      }
     }
   },
 
@@ -118,4 +128,4 @@ console.log('select', this.value)
     });
   }
 
-}
+};
diff --git a/manage/tooltips.css b/manage/tooltips.css
index a9743909..9f85027e 100644
--- a/manage/tooltips.css
+++ b/manage/tooltips.css
@@ -8,6 +8,7 @@
 
 [data-title] {
   position: relative;
+  overflow: visible;
 }
 
 [data-title]:after {
@@ -161,4 +162,3 @@
 .update-problem .check-update:before {
   border-right-color: var(--tooltip-error);
 }
-
diff --git a/sync/import-export-dropbox.js b/sync/import-export-dropbox.js
new file mode 100644
index 00000000..9d892c33
--- /dev/null
+++ b/sync/import-export-dropbox.js
@@ -0,0 +1,177 @@
+/* global messageBox Dropbox createZipFileFromText readZipFileFromBlob
+  launchWebAuthFlow getRedirectUrlAuthFlow importFromString resolve
+  $ $create t chromeLocal API getOwnTab */
+/* exported exportDropbox */
+'use strict';
+
+const DROPBOX_API_KEY = 'zg52vphuapvpng9';
+const FILENAME_ZIP_FILE = 'stylus.json';
+const DROPBOX_FILE = 'stylus.zip';
+const API_ERROR_STATUS_FILE_NOT_FOUND = 409;
+const HTTP_STATUS_CANCEL = 499;
+
+function messageProgressBar(data) {
+  return messageBox({
+    title: `${data.title}`,
+    className: 'config-dialog',
+    contents: [
+      $create('p', data.text)
+    ],
+    buttons: [{
+      textContent: t('confirmClose'),
+      dataset: {cmd: 'close'},
+    }],
+  }).then(() => {
+    document.body.style.minWidth = '';
+    document.body.style.minHeight = '';
+  });
+}
+
+function hasDropboxAccessToken() {
+  return chromeLocal.getValue('dropbox_access_token');
+}
+
+function requestDropboxAccessToken() {
+  const client = new Dropbox.Dropbox({
+    clientId: DROPBOX_API_KEY,
+    fetch
+  });
+  const authUrl = client.getAuthenticationUrl(getRedirectUrlAuthFlow());
+  return launchWebAuthFlow({url: authUrl, interactive: true})
+  .then(urlReturned => {
+    const params = new URLSearchParams(new URL(urlReturned).hash.replace('#', ''));
+    chromeLocal.setValue('dropbox_access_token', params.get('access_token'));
+    return params.get('access_token');
+  });
+}
+
+function uploadFileDropbox(client, stylesText) {
+  return client.filesUpload({path: '/' + DROPBOX_FILE, contents: stylesText});
+}
+
+function exportDropbox(styles) {
+  const mode = localStorage.installType;
+  const title = t('syncDropboxStyles');
+  const text = mode === 'normal' ? t('connectingDropbox') : t('connectingDropboxNotAllowed');
+  messageProgressBar({title, text});
+  if (mode !== 'normal') return;
+
+  hasDropboxAccessToken()
+  .then(token => token || requestDropboxAccessToken())
+  .then(token => {
+    const client = new Dropbox.Dropbox({
+      clientId: DROPBOX_API_KEY,
+      accessToken: token,
+      fetch
+    });
+    return client.filesDownload({path: '/' + DROPBOX_FILE})
+    .then(() => messageBox.confirm(t('overwriteFileExport')))
+    .then(ok => {
+      // deletes file if user want to
+      if (!ok) {
+        return Promise.reject({status: HTTP_STATUS_CANCEL});
+      }
+      return client.filesDelete({path: '/' + DROPBOX_FILE});
+    })
+    // file deleted with success, process styles and create a file
+    .then(() => {
+      messageProgressBar({title: title, text: t('gettingStyles')});
+      return JSON.stringify(styles, null, '\t');
+    })
+    // create zip file
+    .then(stylesText => {
+      messageProgressBar({title: title, text: t('zipStyles')});
+      return createZipFileFromText(FILENAME_ZIP_FILE, stylesText);
+    })
+    // create file dropbox
+    .then(zipedText => {
+      messageProgressBar({title: title, text: t('uploadingFile')});
+      return uploadFileDropbox(client, zipedText);
+    })
+    // gives feedback to user
+    .then(() => messageProgressBar({title: title, text: t('exportSavedSuccess')}))
+    // handle not found cases and cancel action
+    .catch(error => {
+      console.log(error);
+      // saving file first time
+      if (error.status === API_ERROR_STATUS_FILE_NOT_FOUND) {
+        API.getAllStyles()
+        .then(styles => {
+          messageProgressBar({title: title, text: t('gettingStyles')});
+          return JSON.stringify(styles, null, '\t');
+        })
+        .then(stylesText => {
+          messageProgressBar({title: title, text: t('zipStyles')});
+          return createZipFileFromText(FILENAME_ZIP_FILE, stylesText);
+        })
+        .then(zipedText => {
+          messageProgressBar({title: title, text: t('uploadingFile')});
+          return uploadFileDropbox(client, zipedText);
+        })
+        .then(() => messageProgressBar({title: title, text: t('exportSavedSuccess')}))
+        .catch(err => messageBox.alert(err));
+        return;
+      }
+
+      // user cancelled the flow
+      if (error.status === HTTP_STATUS_CANCEL) {
+        return;
+      }
+
+      console.error(error);
+    });
+  });
+};
+
+$('#sync-dropbox-import').onclick = () => {
+  const mode = localStorage.installType;
+  const title = t('syncDropboxStyles');
+  const text = mode === 'normal' ? t('connectingDropbox') : t('connectingDropboxNotAllowed');
+  messageProgressBar({title, text});
+  if (mode !== 'normal') return;
+
+  hasDropboxAccessToken()
+  .then(token => token || requestDropboxAccessToken())
+  .then(token => {
+    const client = new Dropbox.Dropbox({
+      clientId: DROPBOX_API_KEY,
+      accessToken: token,
+      fetch
+    });
+    return client.filesDownload({path: '/' + DROPBOX_FILE})
+    .then(response => {
+      messageProgressBar({title: title, text: t('unzipStyles')});
+      return readZipFileFromBlob(response.fileBlob);
+    })
+    .then(zipedFileBlob => {
+      messageProgressBar({title: title, text: t('readingStyles')});
+      document.body.style.cursor = 'wait';
+      const fReader = new FileReader();
+      fReader.onloadend = event => {
+        const text = event.target.result;
+        const maybeUsercss = !/^[\s\r\n]*\[/.test(text) &&
+          (text.includes('==UserStyle==') || /==UserStyle==/i.test(text));
+        (!maybeUsercss ?
+          importFromString(text) :
+          getOwnTab().then(tab => {
+            tab.url = URL.createObjectURL(new Blob([text], {type: 'text/css'}));
+            return API.openUsercssInstallPage({direct: true, tab})
+              .then(() => URL.revokeObjectURL(tab.url));
+          })
+        ).then(numStyles => {
+          document.body.style.cursor = '';
+          resolve(numStyles);
+        });
+      };
+      fReader.readAsText(zipedFileBlob, 'utf-8');
+    })
+    .catch(error => {
+      // no file
+      if (error.status === API_ERROR_STATUS_FILE_NOT_FOUND) {
+        messageBox.alert(t('noFileToImport'));
+        return;
+      }
+      messageBox.alert(error);
+    });
+  });
+};