diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index b594d71f..580ef244 100644
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -100,6 +100,18 @@
 		"message": "Theme",
 		"description": "Label for the style editor's CSS theme."
 	},
+	"confirmNo": {
+		"message": "No",
+		"description": "'No' button in a confirm dialog"
+	},
+	"confirmStop": {
+		"message": "Stop",
+		"description": "'Stop' button in a confirm dialog"
+	},
+	"confirmYes": {
+		"message": "Yes",
+		"description": "'Yes' button in a confirm dialog"
+	},
 	"dbError": {
 		"message": "An error has occurred using the Stylish database. Would you like to visit a web page with possible solutions?",
 		"description": "Prompt when a DB error is encountered"
@@ -229,6 +241,18 @@
 		"message": "Show number of styles active for the current site on the toolbar button",
 		"description": "Label for the checkbox controlling toolbar badge text."
 	},
+	"replace": {
+		"message": "Replace",
+		"description": "Label before the replace input field in the editor shown on Ctrl-H"
+	},
+	"replaceAll": {
+		"message": "Replace all",
+		"description": "Label before the replace input field in the editor shown on 'replaceAll' hotkey"
+	},
+	"replaceWith": {
+		"message": "Replace with",
+		"description": "Label before the replace-with input field in the editor shown on Ctrl-H etc."
+	},
 	"search": {
 		"message": "Search",
 		"description": "Label before the search input field in the editor shown on Ctrl-F"
diff --git a/edit.html b/edit.html
index 680fb56e..18d67a66 100644
--- a/edit.html
+++ b/edit.html
@@ -160,6 +160,15 @@
 				outline: -webkit-focus-ring-color auto 5px;
 				outline-offset: -2px;
 			}
+			.CodeMirror-search-field {
+				width: 10em;
+			}
+			.CodeMirror-jump-field {
+				width: 5em;
+			}
+			.CodeMirror-search-hint {
+				color: #888;
+			}
 			@-webkit-keyframes highlight {
 				from {
 					background-color: #ff9;
diff --git a/edit.js b/edit.js
index d1cf8b61..7ad00314 100644
--- a/edit.js
+++ b/edit.js
@@ -10,8 +10,8 @@ var useHistoryBack;   // use browser history back when "back to manage" is click
 var propertyToCss = {urls: "url", urlPrefixes: "url-prefix", domains: "domain", regexps: "regexp"};
 var CssToProperty = {"url": "urls", "url-prefix": "urlPrefixes", "domain": "domains", "regexp": "regexps"};
 
-// templates
-var appliesToTemplate = tHTML('\
+var template = {
+appliesTo: '\
 	<li>\
 		<select name="applies-type" class="applies-type style-contributor">\
 			<option value="url" i18n-text="appliesUrlOption"></option>\
@@ -23,15 +23,13 @@ var appliesToTemplate = tHTML('\
 		<button class="remove-applies-to" i18n-text="appliesRemove"></button>\
 		<button class="add-applies-to" i18n-text="appliesAdd"></button>\
 	</li>\
-');
-
-var appliesToEverythingTemplate = tHTML('\
+	',
+appliesToEverything: '\
 	<li class="applies-to-everything" i18n-html="appliesToEverything")>\
 		<button class="add-applies-to" i18n-text="appliesSpecify"></button>\
 	</li>\
-');
-
-var sectionTemplate = tHTML('\
+	',
+section: '\
 	<div>\
 		<label i18n-text="sectionCode"></label>\
 		<textarea class="code"></textarea>\
@@ -46,12 +44,44 @@ var sectionTemplate = tHTML('\
 		<button class="add-section" i18n-text="sectionAdd"></button>\
 		<button class="beautify-section" i18n-text="styleBeautify"></button>\
 	</div>\
-');
-
-var findTemplate = t("search") + ': <input type="text" style="width: 10em" class="CodeMirror-search-field"/>&nbsp;' +
-	'<span style="color: #888" class="CodeMirror-search-hint">(' + t("searchRegexp") + ')</span>';
-
-var jumpToLineTemplate = t('editGotoLine') + ': <input class="CodeMirror-jump-field" type="text" style="width: 5em"/>';
+	',
+find: '\
+	<span i18n-text="search">:&nbsp;\
+		<input type="text" class="CodeMirror-search-field"/>&nbsp;\
+		<span class="CodeMirror-search-hint">(<span i18n-text="searchRegexp"></span>)</span>\
+	</span>\
+	',
+replace: '\
+	<span i18n-text="replace">:&nbsp;\
+		<input type="text" class="CodeMirror-search-field"/>&nbsp;\
+		<span class="CodeMirror-search-hint">(<span i18n-text="searchRegexp"></span>)</span>\
+	</span>\
+	',
+replaceAll: '\
+	<span i18n-text="replaceAll">:&nbsp;\
+		<input type="text" class="CodeMirror-search-field"/>&nbsp;\
+		<span class="CodeMirror-search-hint">(<span i18n-text="searchRegexp"></span>)</span>\
+	</span>\
+	',
+replaceWith: '\
+	<span i18n-text="replaceWith">:&nbsp;\
+		<input type="text" class="CodeMirror-search-field"/>\
+	</span>\
+	',
+replaceConfirm: '\
+	<span i18n-text="replace">?&nbsp;\
+		<button i18n-text="confirmYes"></button>&nbsp;\
+		<button i18n-text="confirmNo"></button>&nbsp;\
+		<button i18n-text="confirmStop"></button>\
+	</span>\
+	',
+jumpToLine: '\
+	<span i18n-text="editGotoLine">:&nbsp;\
+		<input class="CodeMirror-jump-field" type="text"/>\
+	</span>\
+	'
+}
+Object.keys(template).forEach(function(name) { template[name] = tHTML(template[name]); });
 
 // make querySelectorAll enumeration code readable
 ["forEach", "some", "indexOf"].forEach(function(method) {
@@ -61,6 +91,12 @@ var jumpToLineTemplate = t('editGotoLine') + ': <input class="CodeMirror-jump-fi
 // Chrome pre-34
 Element.prototype.matches = Element.prototype.matches || Element.prototype.webkitMatchesSelector;
 
+Array.prototype.rotate = function(amount) { // negative amount == rotate left
+	var r = this.slice(-amount, this.length);
+	Array.prototype.push.apply(r, this.slice(0, this.length - r.length));
+	return r;
+}
+
 // reroute handling to nearest editor when keypress resolves to one of these commands
 var hotkeyRerouter = {
 	commands: {
@@ -476,25 +512,25 @@ function addAppliesTo(list, name, value) {
 	}
 	var e;
 	if (name && value) {
-		e = appliesToTemplate.cloneNode(true);
+		e = template.appliesTo.cloneNode(true);
 		e.querySelector("[name=applies-type]").value = name;
 		e.querySelector("[name=applies-value]").value = value;
 		e.querySelector(".remove-applies-to").addEventListener("click", removeAppliesTo, false);
 	} else if (showingEverything || list.hasChildNodes()) {
-		e = appliesToTemplate.cloneNode(true);
+		e = template.appliesTo.cloneNode(true);
 		if (list.hasChildNodes()) {
 			e.querySelector("[name=applies-type]").value = list.querySelector("li:last-child [name='applies-type']").value;
 		}
 		e.querySelector(".remove-applies-to").addEventListener("click", removeAppliesTo, false);
 	} else {
-		e = appliesToEverythingTemplate.cloneNode(true);
+		e = template.appliesToEverything.cloneNode(true);
 	}
 	e.querySelector(".add-applies-to").addEventListener("click", function() {addAppliesTo(this.parentNode.parentNode)}, false);
 	list.appendChild(e);
 }
 
 function addSection(event, section) {
-	var div = sectionTemplate.cloneNode(true);
+	var div = template.section.cloneNode(true);
 	div.querySelector(".applies-to-help").addEventListener("click", showAppliesToHelp, false);
 	div.querySelector(".remove-section").addEventListener("click", removeSection, false);
 	div.querySelector(".add-section").addEventListener("click", addSection, false);
@@ -589,8 +625,11 @@ function setupGlobalSearch() {
 	var originalCommand = {
 		find: CodeMirror.commands.find,
 		findNext: CodeMirror.commands.findNext,
-		findPrev: CodeMirror.commands.findPrev
+		findPrev: CodeMirror.commands.findPrev,
+		replace: CodeMirror.commands.replace
 	}
+	var originalOpenDialog = CodeMirror.prototype.openDialog;
+	var originalOpenConfirm = CodeMirror.prototype.openConfirm;
 
 	var curState; // cm.state.search for last used 'find'
 
@@ -614,33 +653,43 @@ function setupGlobalSearch() {
 		return cm.state.search;
 	}
 
-	function find(activeCM) {
+	// temporarily overrides the original openDialog with the provided template's innerHTML
+	function customizeOpenDialog(cm, template, callback) {
+		cm.openDialog = function(tmpl, cb, opt) {
+			// invoke 'callback' and bind 'this' to the original callback
+			originalOpenDialog.call(cm, template.innerHTML, callback.bind(cb), opt);
+		};
+		setTimeout(function() { cm.openDialog = originalOpenDialog; }, 0);
+	}
+
+	function focusClosestCM(activeCM) {
 		editors.lastActive = activeCM;
 		var cm = getEditorInSight();
 		if (cm != activeCM) {
 			cm.focus();
-			activeCM = cm;
 		}
-		var originalOpenDialog = activeCM.openDialog;
-		activeCM.openDialog = function(template, callback, options) {
-			originalOpenDialog.call(activeCM, findTemplate, function(query) {
-				activeCM.openDialog = originalOpenDialog;
-				callback(query);
-				curState = activeCM.state.search;
-				if (editors.length == 1 || !curState.query) {
-					return;
+		return cm;
+
+	}
+
+	function find(activeCM) {
+		activeCM = focusClosestCM(activeCM);
+		customizeOpenDialog(activeCM, template.find, function(query) {
+			this(query);
+			curState = activeCM.state.search;
+			if (editors.length == 1 || !curState.query) {
+				return;
+			}
+			editors.forEach(function(cm) {
+				if (cm != activeCM) {
+					cm.execCommand("clearSearch");
+					updateState(cm, curState);
 				}
-				editors.forEach(function(cm) {
-					if (cm != activeCM) {
-						cm.execCommand("clearSearch");
-						updateState(cm, curState);
-					}
-				});
-				if (CodeMirror.cmpPos(curState.posFrom, curState.posTo) == 0) {
-					findNext(activeCM);
-				}
-			}, options);
-		}
+			});
+			if (CodeMirror.cmpPos(curState.posFrom, curState.posTo) == 0) {
+				findNext(activeCM);
+			}
+		});
 		originalCommand.find(activeCM);
 	}
 
@@ -714,14 +763,90 @@ function setupGlobalSearch() {
 		findNext(cm, true);
 	}
 
+	function replace(activeCM, all) {
+		var queue, query, replacement;
+		activeCM = focusClosestCM(activeCM);
+		customizeOpenDialog(activeCM, template[all ? "replaceAll" : "replace"], function(txt) {
+			query = txt;
+			customizeOpenDialog(activeCM, template.replaceWith, function(txt) {
+				replacement = txt;
+				queue = editors.rotate(-editors.indexOf(activeCM));
+				all ? editors.forEach(doReplace) : doReplace();
+			});
+			this(query);
+		});
+		originalCommand.replace(activeCM, all);
+
+		function doReplace() {
+			var cm = queue.shift();
+			if (!cm) {
+				if (!all) {
+					editors.lastActive.focus();
+				}
+				return;
+			}
+			// hide the first two dialogs (replace, replaceWith)
+			cm.openDialog = function(tmpl, callback, opt) {
+				cm.openDialog = function(tmpl, callback, opt) {
+					cm.openDialog = originalOpenDialog;
+					if (all) {
+						callback(replacement);
+					} else {
+						doConfirm(cm);
+						callback(replacement);
+						if (!cm.getWrapperElement().querySelector(".CodeMirror-dialog")) {
+							// no dialog == nothing found in the current CM, move to the next
+							doReplace();
+						}
+					}
+				};
+				callback(query);
+			};
+			originalCommand.replace(cm, all);
+		}
+		function doConfirm(cm) {
+			var wrapAround = false;
+			var origPos = cm.getCursor();
+			cm.openConfirm = function overrideConfirm(tmpl, callbacks, opt) {
+				var ovrCallbacks = callbacks.map(function(callback) {
+					return function() {
+						makeSectionVisible(cm);
+						cm.openConfirm = overrideConfirm;
+						setTimeout(function() { cm.openConfirm = originalOpenConfirm; }, 0);
+
+						var pos = cm.getCursor();
+						callback();
+						var cmp = CodeMirror.cmpPos(cm.getCursor(), pos);
+						wrapAround |= cmp <= 0;
+
+						var dlg = cm.getWrapperElement().querySelector(".CodeMirror-dialog");
+						if (!dlg || cmp == 0 || wrapAround && CodeMirror.cmpPos(cm.getCursor(), origPos) >= 0) {
+							if (dlg) {
+								dlg.remove();
+							}
+							doReplace();
+						}
+					}
+				});
+				originalOpenConfirm.call(cm, template.replaceConfirm.innerHTML, ovrCallbacks, opt);
+			};
+		}
+	}
+
+	function replaceAll(cm) {
+		replace(cm, true);
+	}
+
 	CodeMirror.commands.find = find;
 	CodeMirror.commands.findNext = findNext;
 	CodeMirror.commands.findPrev = findPrev;
+	CodeMirror.commands.replace = replace;
+	CodeMirror.commands.replaceAll = replaceAll;
 }
 
 function jumpToLine(cm) {
 	var cur = cm.getCursor();
-	cm.openDialog(jumpToLineTemplate, function(str) {
+	cm.openDialog(template.jumpToLine.innerHTML, function(str) {
 		var m = str.match(/^\s*(\d+)(?:\s*:\s*(\d+))?\s*$/);
 		if (m) {
 			cm.setCursor(m[1] - 1, m[2] ? m[2] - 1 : cur.ch);
@@ -1087,7 +1212,7 @@ function validate() {
 	// validate the regexps
 	if (document.querySelectorAll(".applies-to-list").some(function(list) {
 		return list.childNodes.some(function(li) {
-			if (li.className == appliesToEverythingTemplate.className) {
+			if (li.className == template.appliesToEverything.className) {
 				return false;
 			}
 			var valueElement = li.querySelector("[name=applies-value]");
@@ -1153,7 +1278,7 @@ function getSections() {
 function getMeta(e) {
 	var meta = {};
 	e.querySelector(".applies-to-list").childNodes.forEach(function(li) {
-		if (li.className == appliesToEverythingTemplate.className) {
+		if (li.className == template.appliesToEverything.className) {
 			return;
 		}
 		var type = li.querySelector("[name=applies-type]").value;