Are we WebExtensions yet? Yes.

Mozilla documentation on WebExtensions.


Here’s a centralized repository of the migration status for various high impact AMO content based on popularity, unique functionality, or otherwise. Please note if an extension is labeled “WebExtension or Beta on AMO” in the right-most “WebExtension” column, that means it has either already migrated, or is in beta form (to find a beta version, scroll to the bottom of the extension’s listing page on AMO and click “Development Channel”); if an extension has no label under the WebExtension column, there may be a tracker that leads to more info.

If there’s an extension you’re interested in that you don’t see on this page, here’s a spreadsheet with a running list of recommended alternatives; there’s also a Discourse discussion about potential alternative replacements for various legacy content.

§ Most Widely Adopted

Name Trackers Blocking bugs WebExtension
# 1-Click YouTube Video Download
YoutubeDownloader@PeterOlayev.com • 694409 users
1047422
0
# 1Password
onepassword4@agilebits.com
1307852
0
WebExtension or Beta on AMO
# ADB Helper
adbhelper@mozilla.org
WebExtension or Beta on AMO
# Adblock Plus
{d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d} • 20619547 users
1226547
10 1190681
1210990
1269062
1277612
1310037
1366752
1369841
1370525
1371255
1375437
WebExtension or Beta on AMO
# Awesome Screenshot Plus - Capture, Annotate & More
jid0-GXjLLfbCoAx0LcltEdFrEkQdQPI@jetpack
1354137
0
WebExtension or Beta on AMO
# BetterPrivacy-signed
{d40f5e7b-d2cf-4856-b441-cc613eeffbe3}
WebExtension or Beta on AMO
# Download Flash and Video
{bee6eb20-01e0-ebd1-da83-080329fb9a3a} • 682182 users
1395433
0
# Download YouTube Videos as MP4
{b9bfaf1c-a63f-47cd-8b9a-29526ced9060}
WebExtension or Beta on AMO
# DownThemAll!
{DDC359D1-844A-42a7-9AA1-88A850A938A8} • 1294978 users
# Easy Screenshot
easyscreenshot@mozillaonline.com • 2403045 users
1356543
0
# Element Hiding Helper for Adblock Plus
elemhidehelper@adblockplus.org • 655424 users
1395437
0
# Flashblock
{3d7eb24f-2740-49df-8937-200b1cc08f8a} • 595268 users
# FlashGot Mass Downloader
{19503e42-ca3c-4c27-b1e2-9cdb2170ee34} • 848724 users
1161597
0
# Flash Video Downloader - YouTube HD Download [4K]
artur.dubovoy@gmail.com • 1066245 users
# Ghostery
firefox@ghostery.com • 1464992 users
WebExtension or Beta on AMO
# Google Translator for Firefox
translator@zoli.bod • 798165 users
1166434
1 1244789
WebExtension or Beta on AMO
# Greasemonkey
{e4a8a97b-f2ed-450b-b12d-ee082ba24781} • 1302204 users
1353468 1334174
2 1332273
1353468
# IDM CC
mozilla_cc@internetdownloadmanager.com
WebExtension or Beta on AMO
# LastPass Password Manager
support@lastpass.com • 745753 users
1282579
1 1282972
WebExtension or Beta on AMO
# Firefox Lightbeam
jid1-F9UJ2thwoAm5gQ@jetpack • 509680 users
1342681
0
WebExtension or Beta on AMO
# MEGA extension
firefox@mega.co.nz
1219940
1 1246236
WebExtension or Beta on AMO
# NoScript Security Suite
{73a6fe31-595d-460b-a920-fcc0f8843232} • 2146154 users
1214733
2 1210990
1332273
# Pin It Button
jid1-YcMV6ngYmQRA2w@jetpack
WebExtension or Beta on AMO
# Reddit Enhancement Suite
jid1-xUfzOsOFlzSOXg@jetpack
1208765
0
WebExtension or Beta on AMO
# Tab Mix Plus
{dc572301-7619-498c-a57d-39143191b318} • 842022 users
1226546
4 1215064
1308059
1315558
1332447
# uBlock Origin
uBlock0@raymondhill.net • 1154406 users
1309926
2 1313401
1367259
WebExtension or Beta on AMO
# Ubuntu Modifications
ubufox@ubuntu.com
1364978
0
WebExtension or Beta on AMO
# Valence
fxdevtools-adapters@mozilla.org
WebExtension or Beta on AMO
# Video DownloadHelper
{b9db16a4-6edc-47ec-a1f4-b86292ed211d} • 4452660 users
1310316
3 1246236
1271553
1323414
# Web of Trust, MyWOT/WOT: Website Reputation Rating
{a0d7ccb3-214d-498b-b4aa-0e8fda9a7bf7}
WebExtension or Beta on AMO
# Xmarks Sync
foxmarks@kei.com • 337623 users
1395440
0
WebExtension or Beta on AMO
# Yahoo Toolbar and New Tab
{635abd67-4fe9-1b23-4f01-e679fa7484c1} • 716458 users
# YouTube䋢 Video and Audio Downloader
feca4b87-3be4-43da-a1b1-137c24220968@jetpack
WebExtension or Beta on AMO

§ Popular

Name Trackers Blocking bugs WebExtension
# Grammarly for Firefox
87677a2c52b84ad3a151a4a72f5bd3c4@jetpack
WebExtension or Beta on AMO
# AngularJS Batarang
ighdmehidhipcmcojjgiloacoafjmpfk@chrome-store-foxified-1964081006
WebExtension or Beta on AMO
# Ember Inspector
ember-inspector@emberjs.com
1253377
1 981514
WebExtension or Beta on AMO
# React Developer Tools
@react-devtools
WebExtension or Beta on AMO
# Redux DevTools
extension@redux.devtools
WebExtension or Beta on AMO
# Vue.js devtools
{5caff8cc-3d2e-4110-a88a-003cc85b3858}
WebExtension or Beta on AMO
# HTTPS Everywhere
https-everywhere@eff.org
1390116
0
# Norton Identity Safe
idsafe@norton.com
WebExtension or Beta on AMO
# Norton Safe Web
nortonsafeweb@symantec.com
WebExtension or Beta on AMO
# Adobe Acrobat - Create PDF
web2pdfextension@web2pdf.adobedotcom
WebExtension or Beta on AMO
# AdBlocker for YouTube™
jid1-q4sG8pYhq8KGHs@jetpack • 314420 users
WebExtension or Beta on AMO
# AdBlocker Ultimate
adblockultimate@adblockultimate.net • 357692 users
WebExtension or Beta on AMO
# Adguard AdBlocker
adguardadblocker@adguard.com
WebExtension or Beta on AMO
# anonymoX
client@anonymox.net • 549250 users
1371270
0
# Ant Video Downloader
anttoolbar@ant.com • 407227 users
# Avast Online Security
wrc@avast.com
1281823
0
WebExtension or Beta on AMO
# AVG Web TuneUp
avg@toolbar
1282593
0
WebExtension or Beta on AMO
# Avira Browser Safety
abs@avira.com
1066890
0
WebExtension or Beta on AMO
# Blur
donottrackplus@abine.com
WebExtension or Beta on AMO
# browser-security-1
firefox@browser-security.de
WebExtension or Beta on AMO
# Browsing Protection by F-Secure
ols@f-secure.com
1395444
0
WebExtension or Beta on AMO
# ColorfulTabs
{0545b830-f0aa-4d7e-8820-50a4629a56fe} • 250595 users
1397400
0
# ColorZilla
{6AC85730-7D0F-4de0-B3FA-21142DD85326} • 273013 users
WebExtension or Beta on AMO
# Dashlane
jetpack-extension@dashlane.com
WebExtension or Beta on AMO
# Disconnect
2.0@disconnect.me • 283780 users
WebExtension or Beta on AMO
# Download Statusbar
{D4DD63FA-01E4-46a7-B6B1-EDAB7D6AD389} • 331909 users
# Easy Youtube Video Downloader Express
{b9acf540-acba-11e1-8ccb-001fd0e08bd4} • 326119 users
WebExtension or Beta on AMO
# EPUBReader
{5384767E-00D9-40E9-B72F-9CC39D655D6F} • 424322 users
1341098
2 1341341
1356397
WebExtension or Beta on AMO
# Evernote Web Clipper
{E0B8C461-F8FB-49b4-8373-FE32E9252800} • 391479 users
WebExtension or Beta on AMO
# Firefox All Aboard 1.6
@all-aboard-v1-6
# FireGestures
firegestures@xuldev.org • 363752 users
# Flagfox
{1018e4d6-728f-4b20-ad56-37578a4de76b} • 525145 users
# FoxyProxy Standard
foxyproxy@eric.h.jung • 286381 users
1359543
0
WebExtension or Beta on AMO
# Full Web Page Screenshots (♥♥♥♥♥)
{0b457cAA-602d-484a-8fe7-c1d894a011ba} • 279529 users
# Garmin Communicator
{195A3098-0BD5-4e90-AE22-BA1C540AFD1E} • 418313 users
# Google Translate, ImTranslator, Dictionary, TTS
{9AA46F4F-4DC7-4c06-97AF-5035170634FE} • 336652 users
# iCloud Bookmarks
firefoxdav@icloud.com • 383932 users
1293853
0
WebExtension or Beta on AMO
# IE Tab V2 (Enhanced IE Tab)
{1BC9BA34-1EED-42ca-A505-6D2F1A935BBB} • 515934 users
# Image Zoom
{1A2D0EC4-75F5-4c91-89C4-3656F6E44B68}
# Kaspersky Protection
light_plugin_F6F079488B53499DB99380A7E11A93F6@kaspersky.com
WebExtension or Beta on AMO
# McAfee Security Scan Plus detection
{e4f94d1e-2f53-401e-8885-681602c0ddd8}
# McAfee WebAdvisor
{4ED1F68A-5463-4931-9384-8FFF5ED91D92}
WebExtension or Beta on AMO
# MeasureIt
{75CEEE46-9B64-46f8-94BF-54012DE155F0}
# Mozilla Archive Format, with MHT and Faithful Save
{7f57cf46-4467-4c2d-adfa-0cba7c507e54}
1332920
0
# NetVideoHunter
netvideohunter@netvideohunter.com • 278207 users
# New Tab Homepage
{66E978CD-981F-47DF-AC42-E3CF417C1467}
# NoSquint
nosquint@urandom.ca
# Password Exporter
{B17C1C5A-04B1-11DB-9804-B622A1EF5492}
# Personas Plus
personas@christopher.beard • 312913 users
1369209
0
# ProxTube - Unblock YouTube
ich@maltegoetz.de • 311056 users
# QuickJava
{E6C1199F-E687-42da-8C24-E7770CC3AE66} • 274114 users
# ReloadEvery
{888d99e7-e8b5-46a3-851e-1ec45da1e644}
# S3.Google Translator
s3google@translator • 369330 users
1123130
0
# SaveFrom.net helper all-in-1 / youtube downloader
helper@savefrom.net
WebExtension or Beta on AMO
# ScrapBook
{53A03D43-5363-4669-8190-99061B2DEBA5}
# Self-Destructing Cookies
jid0-9XfBwUWnvPx4wWsfBWMCm4Jj69E@jetpack
# Skype
{82AF8DCA-6DE9-405D-BD5E-43525BDAD38A}
# Speed Dial
{64161300-e22b-11db-8314-0800200c9a66} • 378805 users
# Speed Dial [FVD] - New Tab Page, Sync...
pavel.sherbakov@gmail.com
# Status-4-Evar
status4evar@caligonstudios.com
# Stylish
{46551EC9-40F0-4e47-8E18-8E5CF550CFB8} • 481414 users
# Text Link
{54BB9F3F-07E5-486c-9B39-C7398B99391C}
# User Agent Switcher
{e968fc70-8f95-4ab9-9e79-304de2a71ee1} • 343383 users
# Video Downloader professional
ffext_basicvideoext@startpage24 • 258678 users
1283654
1 1282982
WebExtension or Beta on AMO
# Web Developer
{c45c406e-ab73-11d8-be73-000a95be3b12} • 493583 users
1395448
0
# xThunder
xthunder@lshai.com
# YouTube ALL HTML5
jid1-qj0w91o64N7Eeg@jetpack
# Youtube Downloader 4K - Video Downloader
paulsaintuzb@gmail.com
# YouTube Flash Player
jid1-HAV2inXAnQPIeA@jetpack • 402546 users
WebExtension or Beta on AMO
# YouTube Flash Video Player
{f3bd3dd2-2888-44c5-91a2-2caeb33fb898} • 299809 users
WebExtension or Beta on AMO
# YouTube High Definition
{7b1bf0b6-a1b9-42b0-b75d-252036438bdc} • 284115 users
WebExtension or Beta on AMO
# YouTube mp3
info@youtube-mp3.org • 514302 users
# ZenMate Security & Privacy VPN
firefox@zenmate.com • 285639 users
# Classic Theme Restorer
ClassicThemeRestorer@ArisT2Noia4dev • 436611 users
# frigate
e67f8350-7edf-11e3-baa7-0800200c9a66@fri-gate.org • 258320 users
# Amazon Assistant for Firefox
abb@amazon.com • 280014 users
WebExtension or Beta on AMO
# VKontakte.ru Downloader (music/videos/photos @ VK)
vk@sergeykolosov.mp
# Session Manager
{1280606b-2510-4fe0-97ef-9b5a22eafe30}
# Easy Access
quicklaunch@mozillaonline.com • 303194 users
# Yahoo Toolbar and New Tab
{635abd67-4fe9-1b23-4f01-e679fa7484c1} • 716458 users
# Search and New Tab by Yahoo
jid1-16aeif9OQIRKxA@jetpack • 582449 users
# New Tab by Yahoo
jid1-G80Ec8LLEbK5fQ@jetpack • 318370 users
# FireFTP
{a7c6cf7f-112c-4500-a7ea-39801a327e5f}
# Bulk Media Downloader
{72b2e02b-3a71-4895-886c-fd12ebe36ba3} • 110000 users
WebExtension or Beta on AMO
# Blur
donottrackplus@abine.com • 85000 users
WebExtension or Beta on AMO
# Tile Tabs WE
tiletabs-we@DW-dev • 65000 users
WebExtension or Beta on AMO
# To Google Translate
jid1-93WyvpgvxzGATw@jetpack • 61000 users
WebExtension or Beta on AMO
# Turn Off the Lights
stefanvandamme@stefanvd.net • 45000 users
WebExtension or Beta on AMO
# Google search link fix
jid0-XWJxt5VvCXkKzQK99PhZqAn7Xbg@jetpack • 60000 users
WebExtension or Beta on AMO
# Video Downloader Prime
jid1-i6dUGvCrz2WZu8@jetpack • 40000 users
WebExtension or Beta on AMO
# Google™ Translator Lite
jid1-f3mYMbCpz2AZYl@jetpack
WebExtension or Beta on AMO
# Honey
jid1-93CWPmRbVPjRQA@jetpack • 100000 users
WebExtension or Beta on AMO
# Roboform Password Manager
{22119944-ED35-4ab1-910B-E619EA06A115}
WebExtension or Beta on AMO
# YouTube™ Flash-HTML5
jid1-o2qEVrZ4t5FJWu@jetpack • 90000 users
WebExtension or Beta on AMO
# New Tab Override (WebExtension)
newtaboverride@agenedia.com • 100000 users
WebExtension or Beta on AMO

§ Other

Name Trackers Blocking bugs WebExtension
# Session Manager
{1280606b-2510-4fe0-97ef-9b5a22eafe30} • 288482 users
# VKontakte.ru Downloader (music/videos/photos @ VK)
vk@sergeykolosov.mp • 275379 users
# Yandex.Bar
yasearch@yandex.ru • 452947 users
WebExtension or Beta on AMO
Source on github.