ruler
Simple tool for measuring arbitrary parts of a page. Does not and will never contain adware.
6.499 Benutzer
WhatRuns
Discover what runs a website - This Firefox extension helps you identify technologies used on any website at the click of a button.
6.473 Benutzer
All Downloader Professional
All Downloader Professional finds links, images, videos, documents on a website an make them downloadable.
6.461 Benutzer
Detailed SEO Extension
Get SEO insights at the click of a button to any website you're currently on. Built by full-time SEO's for daily analysis.
6.418 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+.
6.258 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.
6.075 Benutzer
Draw on Page
Easily draw on any website with simple drawing tools, then print the result.
6.036 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+).
5.859 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.
5.831 Benutzer
Zoom for Firefox
Zoom in or out on web content using the zoom button and mouse scroll wheel for more comfortable reading. That to each percent value. It helps you to zoom easily in and out a web page. Thanks to the slider and the zoom buttons.
5.723 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.
5.668 Benutzer
SmartProxy
SmartProxy is a smart automatic proxy switcher that will automatically enable/disable proxy for the sites you visit, based on customizable rules.
5.662 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.
5.462 Benutzer
Google Analytics Opt-out
Prevents the Google Analytics and Tag Manager's JavaScript APIs from collecting data and recording the user
5.392 Benutzer
Kantu
Moderner Open-Source Web Makro Rekorder mit Selenium IDE für die Automatisierung von Routinearbeit, Web Tests und Datenextraktion.
5.367 Benutzer
HackBar
A HackBar for new firefox (Firefox Quantum). This addon is written in webextension and alternatives to the XUL version of original Hackbar. Press F12 to use HackBar
5.241 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
5.167 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
4.989 Benutzer
Copy Selected Links
Right-click selected text to copy the URL of any links it contains.
4.967 Benutzer
Google Analytics Blocker
Block Google Analytics in any website. If you are a developer and you do not want to watch your own visits on your page or you are just a web user that you do not want pages analyse you, this extension is for you.
4.876 Benutzer
SVG Gobbler
Open source browser extension for finding, editing, exporting, optimizing, and managing SVG content.
4.823 Benutzer
