Google Analytics Debugger
Prints useful information to the JavaScript console by enabling the debug version of the Google Analytics Javascript. P.S: this add-on is migrated from Chrome store.
3,141 users
ffCK Overlays
Right-click any element to remove it. Inspired by the Chrome extension "F*ck Overlays".
3,130 users
SEO META 1 COPY
This is an extension that allows you to easily check SEO-related meta information and copy it with one click.
3,124 users
Omnibug
The leading browser extension for analytics and marketing technology testing and debugging
3,118 users
JSON Formatter
Formats JSON automatically! Open Source, Available with 60+ Themes, Syntax Highlighting, automatically linkifies links and more.
3,107 users
Print for Firefox
Print the current page you see with one single click. That for all kinds of photo printing, poster printing, business cards, etc. Print today a web page, photo or business card with your own favorite Print button.
3,061 users
CopyTables
Select table cells, rows and columns with your mouse or from a context menu. Copy as rich text, HTML, CSV and TSV
3,030 users
webhint
Check for best practices and common errors with your site's accessibility, speed, security and more.
2,764 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.
2,761 users
Merge Windows
Merges the tabs from multiple windows together into one window. Extension won't show context menu item when there aren't more than one window of the same type to merge together. Private windows will only merge with private windows not normal.
2,757 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.
2,643 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.
2,632 users
SEO Analysis & Website Review by WooRank
Instant SEO analysis and website reviews for SEO, mobile, usability and social media. The freshest data when and where you want it.
2,600 users
Pesticide
This extension inserts the Pesticide CSS into the current page, outlining each element to better see placement on the page.
2,588 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!!
2,579 users
