Pixel Perfect Pro
Pixel Perfect Pro helps developers and designers to make best sites and more high quality products.
3,975 users
Ahrefs SEO Toolbar: On-Page and SERP Tools
On-page SEO report, broken link checker, redirect tracer, and country changer for SERP in one add-on. If you have an active account at ahrefs.com, you will also get instant access to Page, Domain, and keyword metrics via your Ahrefs account.
3,943 users
Tamper Data for FF Quantum
- Monitor live requests - Edit headers on live requests - Cancel live requests - Redirect live requests Click the blue cloud in the toolbar to start tampering. When you're done, click it again to stop.
3,833 users
Canvas Defender
Instead of completely blocking canvas fingerprinting, Canvas Defender add-on creates a unique and persistent noise that hides your real canvas fingerprint. This add-on protects you while browsing both in normal and private mode.
3,764 users
Fontanello
A browser extension that lets you display the basic typographic styles of a text by right-clicking it.
3,752 users
Hoppscotch Extension for Firefox
Provides better experience for using the Hoppscotch web app. Haven't used Hoppscotch ? It's an amazing quick API Request Builder. Try it at https://hoppscotch.io/ !!!
3,696 users
Carbonalyser
Allows to visualize the electricity consumption and greenhouse gases (GHG) emissions that your Internet browsing leads to.
3,691 users
Always active Window (Always Visible)
Pretend that all browser windows are active by spoofing the visibility state event
3,683 users
HTTP request maker
Displays a sidebar that lets you to forge HTTP requests. Press Ctrl+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.
3,625 users
HTTP Version Indicator
An indicator showing the HTTP version used to load the page in the address bar.
3,526 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.
3,486 users
ChatGPT Sidebar for Fire Fox
Use ChatGPT in sidebar. You won't need to waste time switching between ChatGPT and other tabs.
3,486 users
Simple WebSocket Client
Construct custom Web Socket requests and handle responses to directly test your Web Socket services.
3,413 users
Force Copy
Force Copy professionally circumvents limitations pertaining to Web Copying, Keyboard Usage, and Right-click Functionalities, facilitating an unhindered browsing experience. Open Source Project: https://github.com/WindrunnerMax/TKScript.
3,327 users
CookieManager - Cookie Editor
Edit cookies related to the current page and all its sub-frames right from a popup
3,283 users
Granted: access multiple AWS accounts at once
View multiple cloud accounts and regions in a single browser.
3,272 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.
3,252 users
ffCK Overlays
Right-click any element to remove it. Inspired by the Chrome extension "F*ck Overlays".
3,181 users
Omnibug
The leading browser extension for analytics and marketing technology testing and debugging
3,147 users
