MobiDevTools
A mobile devtools for debugging web sites and applications with the console, DOM, network info, sources, and more.
6.548 Benutzer
Html Validator
HTML Validator is a Mozilla extension that adds HTML validation inside Firefox, Mozilla. The number of errors of a HTML page is seen on the form of an icon For Firefox 56, use 0.974 (see all versions below). For Firefox 57, see Web Extensions.
6.464 Benutzer
Color Picker For Firefox
HEX Color Picker, RGB Color Picker, Color Picker EyeDropper, Pick color from web page (Color Picker For Firefox)
6.424 Benutzer
Draw on Page
Easily draw on any website with simple drawing tools, then print the result.
6.403 Benutzer
SmartProxy
SmartProxy is a smart automatic proxy switcher that will automatically enable/disable proxy for the sites you visit, based on customizable rules.
6.394 Benutzer
HeadingsMap
The extension generates a document-map or index of any web document structured with headings and/or with sections in HTML 5. It shows the headings structure, the errors in the structure (ie. incorrect levels), and it works as HTML5 Outliner too.
6.250 Benutzer
Night Eye - Dunkel-Modus auf jeder Webseite
Night Eye ermöglicht den Nachtmodus auf jeder Webseite mit einem neuen Algorithmus, der alle Farben analysiert und konvertiert, anstatt sie zu invertieren.
6.187 Benutzer
polkadot{.js} extension
Manage your Polkadot accounts outside of dapps. Injects the accounts and allows signs transactions for a specific account.
6.151 Benutzer
ruler
Simple tool for measuring arbitrary parts of a page. Does not and will never contain adware.
6.110 Benutzer
JavaScript Switcher
A lightweight addon that adds a Toggle button in URL bar, for toggling JavaScript (on or off) individually per domain, and stores that for future visit. Works also with Firefox 57+.
5.972 Benutzer
Kantu
Moderner Open-Source Web Makro Rekorder mit Selenium IDE für die Automatisierung von Routinearbeit, Web Tests und Datenextraktion.
5.958 Benutzer
Always active Window (Always Visible)
Pretend that all browser windows are active by spoofing the visibility state event
5.935 Benutzer
simple-modify-headers
The extension rewrite the header (request or response) based on a rules table. It 's possible to add, modify or remove header fields for a choosen url pattern. It's possible to import/export the configuration
5.905 Benutzer
FoxyProxy Basic
FoxyProxy is an open-source, advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. No paid accounts are necessary; bring your own proxies or buy from any vendor. The original proxy tool, since 2006.
5.835 Benutzer
Live Server Web Extension
Live Reload feature for Dynamic content (PHP, Node.js, ASPNET - Whatever, it doesn't matter). This extension is for Live Server - VSCode Extension (required v3.0.0+).
5.654 Benutzer
All Downloader Professional
All Downloader Professional finds links, images, videos, documents on a website an make them downloadable.
5.504 Benutzer
Full Screen for Firefox
Go full screen with one click on the full screen button. That includes also the full screen movies such as YouTube, Vimeo, etc.
5.251 Benutzer
WebRTC Control
Have control over WebRTC (disable or enable) and protect your IP address.
5.215 Benutzer
Force Copy
Force Copy professionally circumvents limitations pertaining to Web Copying, Keyboard Usage, and Right-click Functionalities, facilitating an unhindered browsing experience. Open Source Project: https://github.com/WindrunnerMax/TKScript.
5.190 Benutzer
Google Analytics Opt-out
Prevents the Google Analytics and Tag Manager's JavaScript APIs from collecting data and recording the user
5.180 Benutzer
Native MPEG-Dash + HLS Playback
Allow the browser to play HLS (m3u8) or MPEG-Dash (mpd) video urls 'natively'. This is a fork of Native HLS with additional features. Click on any m3u8 or mpd link inside Firefox to play it directly in a new tab
5.180 Benutzer
