Omnibug
The leading browser extension for analytics and marketing technology testing and debugging
2,406 users
ffCK Overlays
Right-click any element to remove it. Inspired by the Chrome extension "F*ck Overlays".
2,377 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.
2,374 users
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.
2,344 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)
2,262 users
Carbonalyser
Allows to visualize the electricity consumption and greenhouse gases (GHG) emissions that your Internet browsing leads to.
2,235 users
HTTP request maker
Displays a sidebar that lets you to forge HTTP requests. Press Alt+Shift+Y to show the sidebar and make your own HTTP request. You can choose the method GET, HEAD, POST, OPTIONS, PUT DELETE and the body data to send. Response in the main window.
2,221 users
LightSession Pro for ChatGPT
Fix slow, laggy ChatGPT tabs in Firefox. Local-only extension that speeds up long conversations by trimming old messages from the page (no data leaves your browser).
2,159 users
CookieManager - Cookie Editor
Edit cookies related to the current page and all its sub-frames right from a popup
2,156 users
ASBPlayer: Learn with Subs
Language learning subtitle player for streaming platforms like Netflix, YouTube, and more.
2,138 users
Youtube Play All
Adds a 'Play All' button to YouTube, allowing video playback in Latest, Popular, or Oldest order.
2,121 users
GeoSpoof: Spoof Geolocation & Timezone
Spoof geolocation, fake your GPS location and timezone — change your location to any city or sync it to your VPN. No account.
2,120 users
webhint
Check for best practices and common errors with your site's accessibility, speed, security and more.
2,097 users
PDF Combine - Convert and Merge
Convert and merge multiple files with different formats into a single PDF document
2,090 users
IBM Equal Access Accessibility Checker
A web developer tool that checks web applications for accessibility issues.
2,086 users
