9,558 extensions found in Web Development

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Last Tab
Allows you to switch to the last or most recent tab, Press Alt + Z You can also change the keyboard shortcut following this link https://support.mozilla.org/en-US/kb/manage-extension-shortcuts-firefox
Rated 4.6 out of 5
Mehedi Hasan
152 users
HTTP Header Mangler
HTTP Header Mangler inserts HTTP headers on a per host basis.
Rated 4.2 out of 5
Peter Nilsson
152 users
Environment Marker
Use the Environment Marker extension and prevent screw-ups with the (programming) environments.
Rated 5 out of 5
Environment Marker
152 users
Bluesky - Cleanup Usernames
cleans all usernames of their extention on Bluesky
Rated 5 out of 5
Greendata
151 users
TikTok Cleaner
A simple extension that removes the sharing query parameters of TikTok to allow playback.
Rated 5 out of 5
ilianoKokoro
151 users
Odoo Toolbox
Enhances the experience of Odoo developers and Odoo.SH users by adding a variety of tools and features.
Rated 5 out of 5
thcl
150 users
Sound Meter (Noise & Decibel)
Measure the surrounding sound (dB) and noise with your computer's microphone!
Rated 4 out of 5
Loori
150 users
Cookie Tab Viewer
Get cookies of the current tab.
There are no ratings yet
Storrito
150 users
form-info
Adds a form information panel to the developer tools.
Rated 3.6 out of 5
Atsawin
150 users
CSS and XPath checker
A helper tool for to confirm CSS and XPath selector.
There are no ratings yet
TANIGUCHI Takaki
149 users
LiveGamers.pl - Dodatek
Rozszerzenie umożliwiające poprawne odtwarzanie video w serwisach LiveGamers.pl.
There are no ratings yet
livegamers
149 users
CRX下载器
CRX下载器，Chrome/Edge插件下载，可下载微软和谷歌扩展商店插件
Rated 3.3 out of 5
waahah
149 users
SrcRplc - Unblock Imgur Images
This add-on allows to see blocked Imgur images in pages via proxy.
Rated 4.9 out of 5
Atakan Au
149 users
Speed Test Internet
Check internet download/upload speed
Rated 3.2 out of 5
Firefox addon Free
149 users
Meteor DevTools Evolved
The Meteor framework development tool belt, evolved.
Rated 5 out of 5
Leonardo Venturini
149 users
CloudFlare Purge Plugin
The Cloudflare purge plugin uses the Cloudflare API to purge any page of a website that serves its contents through the Cloudflare CDN. After you set your CF e-mail and API key in the options, you can purge the cache of any page of your website.
Rated 3 out of 5
Firefox user 14122462
149 users
Quantum Hackbar
Hackbar port for the new WebExtensions API. It's redesigned and optimized to work with the new Firefox Quantum. It sits in your DevTools - Click F12 to open it. Any suggestions and/or issues are welcome :)
Rated 4.9 out of 5
StyleShit
148 users
LanguageTool Website Spellcheck - LTWS
LanguageTool Website Spellcheck - LTWS is a convenient Firefox extension that allows you to check any text on web pages for spelling, grammar, and style issues using the powerful LanguageTool service.
Rated 5 out of 5
M.H.
148 users
Knockoutjs context
Shows the knockout context & data for the selected dom node in a sidebar of the elements pane.
Rated 5 out of 5
Tim Stuyckens
148 users
LLMFeeder - Webpage to Markdown
Convert web pages to clean Markdown and copy to clipboard for LLM consumption in one click!
Rated 5 out of 5
jatinkrmalik.com
148 users
ChatHub - All-in-one chatbot client Free
Use ChatGPT, Bing, Bard, Claude and more chatbots simultaneously
Rated 2.3 out of 5
Ruslan A
148 users
vt-autologin
A Firefox-Extension for auto login to various pages. It can be used when building a kiosk-device.
Rated 5 out of 5
VANTAiO Development
148 users
React Performance Devtool
A Firefox devtool extension for inspecting the performance of React components.
Rated 1 out of 5
Nitin Tulswani
147 users
Word to PDF - Convert and Merge
Convert MS Word documents (doc and docx) into PDF format
Rated 5 out of 5
emano waldeck
147 users
Stay for Browser
Userscript manager compatible with Tampermonkey, Violentmonkey. Dark mode for every website. Stay synched on Chrome/Safari/Firefox.
Rated 5 out of 5
Stay Browser
147 users