9,361 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
153 users
form-info
Adds a form information panel to the developer tools.
Rated 3.6 out of 5
Atsawin
153 users
WonderSwitcher
The WonderProxy Switcher allows you to switch between HTTP proxy servers quickly and easily to speed up your website testing. Import proxies from your WonderProxy account or add your own custom servers.
Rated 4 out of 5
WonderProxy
153 users
Show-HTTP-Headers
Show HTTP headers in each tab.
Rated 4.5 out of 5
Warren Bank
152 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
151 users
Cookie Tab Viewer
Get cookies of the current tab.
There are no ratings yet
Storrito
151 users
Disable CSP and CORS
Disables CSP and CORS for every website.
Rated 3.3 out of 5
nas927
151 users
Image ALT
Check all image elements have an ALT attribute either empty for decoration or a accessible name.
Rated 4 out of 5
Deafinitive
151 users
Adjust Viewport Size
Resize window adjusts to viewport. ブラウザの表示部分に合わせてウインドウの大きさを変更できます。
Rated 4.9 out of 5
FullStackChoreman
150 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
150 users
Download Reddit™ Videos
RedditVideodl.com allows you to download Reddit videos with Sound in HD Formats.
Rated 2.7 out of 5
redditvideodl.com
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
Sound Meter (Noise & Decibel)
Measure the surrounding sound (dB) and noise with your computer's microphone!
Rated 4 out of 5
Loori
149 users
Live HTTP headers
Displays the live log with the http requests headers
Rated 1 out of 5
ircestudios
149 users
Meteor DevTools Evolved
The Meteor framework development tool belt, evolved.
Rated 5 out of 5
Leonardo Venturini
149 users
Hotwire Dev Tools
Hotwire Dev Tools for Turbo and Stimulus
Rated 5 out of 5
Leon Vogt
149 users
Selection Highlighter
Highlight occurrences of selected text, with or without a keypress.
Rated 4.3 out of 5
neaumusic
149 users
Login Popup Blocker
Block login pop-up dialogs. Bypass login on websites like Pinterest, Quora and others like these.
There are no ratings yet
Kazem
148 users
Xdebug Session Cookie
This addon is for PHP developers that use tools with XDEBUG support.
Rated 3.1 out of 5
Kudlaty
148 users
API Request Tester
Test and debug API requests directly from your browser.
Rated 1 out of 5
Daniel
148 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
CMS Backend Opener
Mit diesem Add-on kann man schnell von einer offenen Website in das dazugehörige Backend wechseln. Das Backend wird dabei automatisch erkannt. Tastenkombination: Alt+Y Unterstützte CMS: WordPress, Typo3, Joomla, Django, Drupal, Contao, Oxid u.v.m.
Rated 5 out of 5
Andy R.
147 users
DNSinfo.xyz IP/Domain Information
A web extension for viewing the IP address, reverse DNS, Geolocation, ASN and DNSSEC status of the currently active tab.
Rated 4.8 out of 5
Justus-D
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
146 users
Solid Devtools
Chrome Developer Tools extension for debugging SolidJS applications.
Rated 5 out of 5
thetarnav
146 users