1,022 extensions found in Web Development

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Chrome Simulator
Makes Firefox wear a mask to look like Chrome to websites that otherwise won't work.
Rated 4.7 out of 5
Ariel
530 users
IdeaPi: Chat Exporter for ChatGPT, Gemini & Claude
Export ChatGPT, Gemini, Claude, and DeepSeek conversations to Markdown, or sync them to IdeaPi for workflow processing.
Rated 4 out of 5
IdeaPi.ai
490 users
Script Runner
Script injector for JavaScript and CSS!
Rated 5 out of 5
ankur1218
479 users
JavaScript QR Code
Make QR Codes in pure JavaScript
Rated 3.9 out of 5
Francesco De Stefano
475 users
Cache Cleaner
Modern Browser Addon to easily clean selected cache items for specific sites or the whole browser with a single key press, from the right-click context menu or via the toolbar icon popup. Allows clearing Cache Storage in Firefox for the current site.
Rated 5 out of 5
Shane
474 users
cBlock Origin
Finally, an efficient blocker. Easy on CPU and memory.
Rated 5 out of 5
Ariel
447 users
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.
Rated 4.5 out of 5
Sytelix
432 users
Markdown Editor for Firefox
Markdown Editor for Firefox also comes with one-click HTML conversion, file support and other discreet gems.
Rated 3.8 out of 5
Coffee & Fun LLC
420 users
compact toolbar
You can toggle as hide/show bookmark's titles on bookmark toolbar.
Rated 3.7 out of 5
kakakikikeke
415 users
DTF ReReDesign
Правильный редизайн дтф
Rated 5 out of 5
Nikos7331
409 users
Cookie Popup Blocker
Automatically blocks cookies and cookie consent popups
Rated 2.3 out of 5
Sumalya Chatterjee
399 users
TwineHacker
Allows you to change font/style; also adds cheats
Rated 3.3 out of 5
biah
388 users
JShelter
JShelter controls the APIs provided by the browser. The goal is to improve the privacy and security of the user running the extension.
Rated 4.5 out of 5
Libor Polčák
382 users
Cookie Editor - Extended
Simple yet powerful Cookie Editor that allow you to quickly create, edit and delete cookies without leaving your tab.
Rated 4.2 out of 5
Warren Bank
378 users
Free Modern ChatGPT for Fire Fox - ZChatGPT
Fully Free extension to allow Firefox users to use ChatGPT in any tab without the need to open ChatGPT or having account.
Rated 3.9 out of 5
HamzaDev
356 users
WebDAV Browser
Browse a URL as a WebDAV share
Rated 4.6 out of 5
Sergey Ponomarev
355 users
YouTube Background Play
Keep YouTube videos playing when you switch tabs or minimize your browser. Perfect for listening to music or podcasts in the background.
Rated 5 out of 5
Felipe
347 users
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.
Rated 3.6 out of 5
Geraked
346 users
Auto Refresh A
Automatically refresh the page every 60 seconds.
Rated 5 out of 5
pabloduenas
344 users
My IP Address Checker: Test IP + IPv6 + VPN
Displays IP address info and details like location + VPN usage when clicking on the IP button
Rated 3.5 out of 5
My IP Address Checker
341 users
Font Size Decrease
Increase the font size on the current page with a single click.
Rated 5 out of 5
Stefan vd
336 users
Offline Caching
Enable offline caching on any web site or app, allowing for usage even without Internet access.
Rated 4.2 out of 5
octt
334 users
VPN для YouTube, Discord
GhostGram VPN — браузерное расширение для обхода блокировок YouTube, Discord, WhatsApp, Instagram и онлайн-звонков в России. Быстрое подключение из браузера, выбор сервера и переключение режимов HTTPS/SOCKS5 в один клик ⚡🔐
Rated 4 out of 5
GhostGram
315 users
ScriptCat Beta
Everything can be scripted, allowing your browser to do more!
Rated 5 out of 5
王一之
313 users
View Page Source
Adds the ability to open the page source in a new tab via button (Desktop) or menu (Firefox for Android).
Rated 5 out of 5
tnh
278 users