To use these add-ons, you'll need to download Firefox.

Log in

6,994 extensions found in Web Development

Filter results
Search results
  • SugarMelt

    SugarMelt

    Allows you to change font/style; also adds cheats

    Lure of Chaos

    388 users

  • Open in Brave Browser

    Open in Brave Browser

    Open current page, link, or all tabs in the Brave browser

    Brian

    388 users

  • OpenSwitchMaps

    OpenSwitchMaps

    Switch map services, and some useful links for OpenStreetMap contributors

    tankaru

    386 users

  • Text Editor

    Text Editor

    A free, highly customizable text and code editor for your browser.

    Sevina

    385 users

  • Element-Hider

    Element-Hider

    Pressing control and shift keys, double click away any element you want to hide. Control + shift + z to undo.

    David Stevens

    381 users

  • network monitor without devtools

    network monitor without devtools

    monitor the network without web devtools.

    lune

    381 users

  • SWR DevTools

    SWR DevTools

    A DevTool for SWR

    koba04

    380 users

  • GPSDetect

    GPSDetect

    Detects GPS EXIF information in loaded JPEGs automatically

    Allan Wirth

    380 users

  • Cloudflare Optics

    Cloudflare Optics

    Cloudflare Optics is a browser extension that helps display interesting information when you visit a site, particularly if that site is proxied through Cloudflare.

    Cloudflare

    379 users

  • Internet Speed Test

    Internet Speed Test

    A browser action that test internet speed.

    Ray

    379 users

  • Quicker Connector

    Quicker Connector

    Quicker软件的浏览器扩展。 让使用者可以通过Quicker动作控制浏览器或网页，实现自动化，提升工作效率。

    cuiliang

    376 users

  • My IP Address Checker: Test IP + IPv6 + VPN

    My IP Address Checker: Test IP + IPv6 + VPN

    Displays IP address info and details like location + VPN usage when clicking on the IP button

    My IP Address Checker

    374 users

  • var_dump

    var_dump

    client-side var_dump beautifier

    Cl00e9ment

    373 users

  • Vidoo

    Vidoo

    Change the speed of medias, adjust video filters, skip Ads automatically, flip videos horizontally or vertically, rotate, etc. Adjustable filter parameters: brightness, contrast, saturation, etc.

    Geraked

    371 users

  • ARIA DevTools

    ARIA DevTools

    Easily spot missing ARIA labels, misused ARIA roles, and incomplete keyboard support in your web applications.

    Mateusz Zieliński

    368 users

  • CRX Installer

    CRX Installer

    Install Chrome extension to Floorp/Firefox nightly/Librewolf

    FoxRefire

    366 users

  • Measure Element

    Measure Element

    Shows width, height, or alignment of selected area at anywhere on webpage in pixels.

    XtreamDev

    366 users

  • Ghost Inspector - Web Test Recorder

    Ghost Inspector - Web Test Recorder

    Ghost Inspector is an automated browser testing service. Our add-on allows you to record yourself performing actions on your website within your browser, then sync them to the Ghost Inspector service and run them continuously as a regression test.

    Ghost Inspector

    364 users

  • Workona Tab Suspender

    Workona Tab Suspender

    Suspend your browser tabs to save memory.

    Workona

    362 users

  • Trello Card ID

    Trello Card ID

    Shows Trello card IDs for use in commits and for other quick references. Copy the ID to the clipboard by clicking on it.

    Alexander Ploner

    362 users

  • XPath Helper

    XPath Helper

    Quickly get the XPath for any element on a webpage with just one click. Simply select an element and it will display its XPath.

    Oziku Technologies LLC

    361 users

  • SEOInfo

    SEOInfo

    Shows SEO issues as you navigate pages. Displays performance data, redirects, structured data and errors for HTML pages. Save to Excel.

    Weeblr

    361 users

  • Stark Accessibility Checker

    Stark Accessibility Checker

    Find and fix compliance issues in record time with automated checks and smart suggestions.

    Stark Lab, Inc.

    357 users

  • Grafana k6 Browser Recorder

    Grafana k6 Browser Recorder

    Record k6 scripts right from the browser with the ability to automatically upload them to Grafana Cloud.

    Grafana Labs

    356 users

  • SAML to AWS STS Keys

    SAML to AWS STS Keys

    Generates file with AWS STS Keys after logging in to AWS webconsole using SSO (SAML 2.0). It leverages 'assumeRoleWithSAML' API.

    GB

    355 users