diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index 43de23ac..29772243 100644
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -60,6 +60,10 @@
 		"message": "URLs starting with",
 		"description": "Option to make the style apply to the entered string as a URL prefix"
 	},
+	"applyAllUpdates": {
+		"message": "Apply all updates",
+		"description": "Label for the button to apply all detected updates"
+	},
 	"checkAllUpdates": {
 		"message": "Check all styles for updates",
 		"description": "Label for the button to check all styles for updates"
@@ -288,6 +292,10 @@
 		"message": "Style is up to date.",
 		"description": "Text that displays when an update check completed and no update is available"
 	},
+	"updateAllCheckSucceededNoUpdate": {
+		"message": "All styles are up to date.",
+		"description": "Text that displays when an update all check completed and no updates are available"
+	},
 	"updateCompleted": {
 		"message": "Update completed.",
 		"description": "Text that displays when an update completed"
diff --git a/manage.html b/manage.html
index 150cf5a2..0faf51d8 100644
--- a/manage.html
+++ b/manage.html
@@ -140,6 +140,10 @@
 				<div><input id="manage.onlyEdited" type="checkbox"><label id="manage.onlyEdited-label" for="manage.onlyEdited"></label></div>
 			</fieldset>
 			<p><button id="check-all-updates"></button></p>
+			<p>
+				<button id="apply-all-updates" class="hidden"></button>
+				<span id="update-all-no-updates" class="hidden"></span>
+			</p>
 			<p><a href="edit.html"><button id="add-style-label"></button></a></p>
 			<div id="options">
 				<h2 id="options-heading"></h2>
diff --git a/manage.js b/manage.js
index 41c3a57a..f99dfc67 100644
--- a/manage.js
+++ b/manage.js
@@ -188,11 +188,52 @@ function doCheckUpdate(event) {
 	checkUpdate(getStyleElement(event));
 }
 
-function checkUpdateAll() {
-	Array.prototype.forEach.call(document.querySelectorAll("[style-update-url]"), checkUpdate);
+function applyUpdateAll() {
+	var btnApply = document.getElementById("apply-all-updates");
+	btnApply.disabled = true;
+	setTimeout(function() {
+		btnApply.style.display = "none";
+		btnApply.disabled = false;
+	}, 1000);
+
+	Array.prototype.forEach.call(document.querySelectorAll(".can-update .update"), function(button) {
+		button.click();
+	});
 }
 
-function checkUpdate(element) {
+function checkUpdateAll() {
+	var btnCheck = document.getElementById("check-all-updates");
+	var btnApply = document.getElementById("apply-all-updates");
+	var noUpdates = document.getElementById("update-all-no-updates");
+
+	btnCheck.disabled = true;
+	btnApply.classList.add("hidden");
+	noUpdates.classList.add("hidden");
+
+	var elements = document.querySelectorAll("[style-update-url]");
+	var toCheckCount = elements.length;
+	var updatableCount = 0;
+	Array.prototype.forEach.call(elements, function(element) {
+		checkUpdate(element, function(success) {
+			if (success) {
+				++updatableCount;
+			}
+			if (--toCheckCount == 0) {
+				btnCheck.disabled = false;
+				if (updatableCount) {
+					btnApply.classList.remove("hidden");
+				} else {
+					noUpdates.classList.remove("hidden");
+					setTimeout(function() {
+						noUpdates.classList.add("hidden");
+					}, 10000);
+				}
+			}
+		});
+	});
+}
+
+function checkUpdate(element, callback) {
 	element.querySelector(".update-note").innerHTML = t('checkingForUpdate');
 	element.className = element.className.replace("checking-update", "").replace("no-update", "").replace("can-update", "") + " checking-update";
 	var id = element.getAttribute("style-id");
@@ -203,10 +244,15 @@ function checkUpdate(element) {
 	function handleSuccess(forceUpdate, serverJson) {
 		chrome.extension.sendMessage({method: "getStyles", id: id}, function(styles) {
 			var style = styles[0];
+			var needsUpdate = false;
 			if (!forceUpdate && codeIsEqual(style.sections, serverJson.sections)) {
 				handleNeedsUpdate("no", id, serverJson);
 			} else {
 				handleNeedsUpdate("yes", id, serverJson);
+				needsUpdate = true;
+			}
+			if (callback) {
+				callback(needsUpdate);
 			}
 		});
 	}
@@ -217,6 +263,9 @@ function checkUpdate(element) {
 		} else {
 			handleNeedsUpdate(t('updateCheckFailBadResponseCode', [status]), id, null);
 		}
+		if (callback) {
+			callback(false);
+		}
 	}
 
 	if (!md5Url || !originalMd5) {
@@ -228,6 +277,9 @@ function checkUpdate(element) {
 				checkUpdateFullCode(url, true, handleSuccess, handleFailure);
 			} else {
 				handleNeedsUpdate("no", id, null);
+				if (callback) {
+					callback(false);
+				}
 			}
 		}, handleFailure);
 	}
@@ -367,6 +419,8 @@ document.title = t("manageTitle");
 tE("manage-heading", "manageHeading");
 tE("manage-text", "manageText", null, false);
 tE("check-all-updates", "checkAllUpdates");
+tE("apply-all-updates", "applyAllUpdates");
+tE("update-all-no-updates", "updateAllCheckSucceededNoUpdate");
 tE("add-style-label", "addStyleLabel");
 tE("options-heading", "optionsHeading");
 tE("show-badge-label", "prefShowBadge");
@@ -376,6 +430,7 @@ tE("filters", "manageFilters");
 tE("stylesFirst-label", "popupStylesFirst");
 
 document.getElementById("check-all-updates").addEventListener("click", checkUpdateAll, false);
+document.getElementById("apply-all-updates").addEventListener("click", applyUpdateAll, false);
 
 function onFilterChange (className, event) {
 	var container = document.getElementById("installed"),