To use Android extensions, you'll need Firefox for Android. To explore Firefox for desktop add-ons, please visit our desktop site.

Log in

440 extensions found in Web Development

Filter results
Search results
  • 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

    380 users

  • Cookie Editor - Extended

    Cookie Editor - Extended

    Simple yet powerful Cookie Editor that allow you to quickly create, edit and delete cookies without leaving your tab.

    Warren Bank

    377 users

  • TwineHacker

    TwineHacker

    Allows you to change font/style; also adds cheats

    biah

    370 users

  • Captcha Solver Recognition

    Captcha Solver Recognition

    2Captcha plugin allows you to automatically solve CAPTCHAs found on any webpage.

    Maximilian

    353 users

  • Copy Link Text

    Copy Link Text

    The only extension that lets you effortlessly copy link text on both desktop and mobile—via right-click, Alt+C shortcut, or Copy Mode activation.

    Sytelix

    334 users

  • Offline Caching

    Offline Caching

    Enable offline caching on any web site or app, allowing for usage even without Internet access.

    octt

    302 users

  • WebDAV Browser

    WebDAV Browser

    Browse a URL as a WebDAV share

    Sergey Ponomarev

    301 users

  • View Page Source

    View Page Source

    Adds the ability to open the page source in a new tab via button (Desktop) or menu (Firefox for Android).

    tnh

    297 users

  • DTF ReReDesign

    DTF ReReDesign

    Правильный редизайн дтф

    Nikos7331

    278 users

  • Font Size Decrease

    Font Size Decrease

    Increase the font size on the current page with a single click.

    Stefan vd

    258 users

  • all reload

    all reload

    You can reload all tabs from right clicking context menu.

    kakakikikeke

    258 users

  • Tab Refresher-by Hussain

    Tab Refresher-by Hussain

    Tab Refresher is a simple and efficient Firefox add-on that automatically refreshes specific browser tabs at customizable time intervals. Ideal for monitoring live data, refreshing dashboards, or staying updated on web content without manual effort.

    hussain

    256 users

  • ScriptCat Beta

    ScriptCat Beta

    Everything can be scripted, allowing your browser to do more!

    王一之

    255 users

  • Domaines Tiers Contactés et requêtes associées

    Domaines Tiers Contactés et requêtes associées

    Tous trackés… mais ou moins vous le savez. Avec cette extension Domaines Tiers Contactés (DTC pour les intimes) regardez quels sont les domaines tiers contactés par les sites que vous visitez, avec des compteurs journaliers et hebdomadaires.

    Gavois Sébastien

    246 users

  • Easy DNS lookup

    Easy DNS lookup

    Utility to do DNS lookups directly to DNS APIs and display the response in the addon.

    wesinator

    238 users

  • Noop Mail - Disposable Temporary Email

    Noop Mail - Disposable Temporary Email

    Temporary disposable email address. Protect your email from spam, bots and phishing with NoopMail.

    Noop Mail

    233 users

  • all-in-one

    all-in-one

    Facility for providing suite of tools for handling web components e.g. standard formats HTML, RSS, M3U8, and more.

    Firefox user 15314155

    232 users

  • Easy QR

    Easy QR

    Easy QR code, the best QR extension. Generate offline QR Code with a simple click!

    iToolkit

    204 users

  • OptiSearch

    OptiSearch

    Display ChatGPT, StackOverflow, Wikipedia, etc. answers alongside Google Search results !

    OptiSearch

    200 users

  • Markdown Editor for Firefox

    Markdown Editor for Firefox

    Markdown Editor for Firefox also comes with one-click HTML conversion, file support and other discreet gems.

    Coffee & Fun

    196 users

  • Bluesky - Cleanup Usernames

    Bluesky - Cleanup Usernames

    cleans all usernames of their extention on Bluesky

    Greendata

    179 users

  • SEO Website Scanner: Meta, Headings, etc.

    SEO Website Scanner: Meta, Headings, etc.

    Scans a page for basic SEO meta information and headings.

    SEO Website Scanner

    177 users

  • ChatGPT - Auto RTL Checker

    ChatGPT - Auto RTL Checker

    Automatically sets RTL for Persian texts and Make Justify all texts. به طور خودکار متون فارسی را از راست به چپ تنظیم میکند

    Abolfazl Mousavi

    175 users

  • Stay for Browser

    Stay for Browser

    Userscript manager compatible with Tampermonkey, Violentmonkey. Dark mode for every website. Stay synched on Chrome/Safari/Firefox.

    Stay Browser

    152 users

  • CRX Downloader

    CRX Downloader

    CRX downloader, Chrome/Edge plugin download, Microsoft and Google Extension Store plugins available for download

    waahah

    148 users