webhint
Check for best practices and common errors with your site's accessibility, speed, security and more.
2,568 users
IBM Equal Access Accessibility Checker
A web developer tool that checks web applications for accessibility issues.
2,541 users
Basic JSON Formatter
Adds a page action to pretty-print JSON. Unlike similar extensions, this simply pretty-prints it. It doesn't add any kind of viewer, colors, or collapsing. If you want this to work as expected, disable devtools.jsonview.enabled in about:config.
2,516 users
HackTools
Hacktools, is a web extension facilitating your web application penetration tests, it includes cheat sheets as well as all the tools used during a test such as XSS payloads, Reverse shells to test your web application.
2,420 users
Script Blocker Ultimate (NoScript, Disable JS)
Best Script Blocker for Firefox. (Best in Performance, This addon does NOT track user activities same as others)
2,355 users
dataslayer
Debug and test tag management (Google Tag Manager, Adobe Launch / DTM, Tealium) and analytics (Google Analytics, Adobe Analytics) implementations from within Developer Tools.
2,332 users
Yandex Wordstat Assistant
Расширение, позволяющее значительно ускорить сбор фраз с помощью сервиса подбора слов Яндекс (wordstat)
2,324 users
XSec - Безопасный VPN нового поколения
Безлимитный ВПН с маскировкой трафика для Mozilla Firefox — без регистрации. Заботимся о безопасности и приватности. На русском языке. Бесплатный VPN для ChatGPT, Discord, YouTube, Instagram и других сервисов!
2,312 users
Chat GPT for Google
See the ChatGPT responses right next to your search engine results. https://extensionchatgpt.com/ See our youtube guide: https://www.youtube.com/watch?v=p9it2NCB3_c
2,303 users
Pesticide
This extension inserts the Pesticide CSS into the current page, outlining each element to better see placement on the page.
2,298 users
ReCaptcha Solver
Verify Google ReCaptcha V2 automatically with :2Captcha, DeathByCaptcha, ImageTyperz, RuCaptcha, Anti-Captcha, BestCaptchaSolver and EndCaptcha Without API or TOKEN key it won't work!!
2,293 users
Resource Override
An extension to help you gain full control of any website by redirecting traffic, replacing, editing, or inserting new content.
2,268 users
ТУБЕРНЕТ - Доступ к любимым сервисам
ТУБЕРNET - Бесплатный VPN для YouTube, ChatGPT, Claude, Gemini, Grok, Instagram, Facebook, X, Discord, TikTok, Threads, RuTracker, Rutor, Roblox, LinkedIn, Telegram, WhatsApp, Spotify, Snapchat, Ficbook, Роблокс, Ютуб, Инстаграм, Фейсбук, Дискорд
2,251 users
ChroPath
ChroPath helps to generate and validate selectors like relative xpath, cssSelector etc with iframe support.
2,239 users
Fake Data - A form filler you won't hate
Fill form fields on the fly with fake random data. No configuration needed, just double click on each input you want to fill. Has an autolearn feature for unrecognised fields.
2,237 users
FB unseen
Blocks the ”seen” feature of the facebook messenger, and your friends will no longer be able to see if you read their messages.
2,191 users
