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.
6 662 пользователя
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.
6 426 пользователей
polkadot{.js} extension
Manage your Polkadot accounts outside of dapps. Injects the accounts and allows signs transactions for a specific account.
6 417 пользователей
Draw on Page
Easily draw on any website with simple drawing tools, then print the result.
6 354 пользователя
Night Eye - Темный режим на любом веб-сайте
Night Eye позволяет использовать ночной режим на любом веб-сайте, используя новый алгоритм, который анализирует и преобразует все цвета вместо их инвертирования.
6 308 пользователей
SmartProxy
SmartProxy is a smart automatic proxy switcher that will automatically enable/disable proxy for the sites you visit, based on customizable rules.
6 196 пользователей
ruler
Simple tool for measuring arbitrary parts of a page. Does not and will never contain adware.
6 123 пользователя
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+.
6 064 пользователя
Always active Window (Always Visible)
Pretend that all browser windows are active by spoofing the visibility state event
5 917 пользователей
Color Picker For Firefox
HEX Color Picker, RGB Color Picker, Color Picker EyeDropper, Pick color from web page (Color Picker For Firefox)
5 911 пользователей
Ui.Vision
Open-source Ui.Vision is RPA software for task & test automation. It is 3 tools in 1: Visual BROWSER automation with Selenium IDE import/export, 2: Visual DESKTOP automation and 3: (optional) Prompting with integrated Anthropic Claude Computer Use
5 895 пользователей
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
5 817 пользователей
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.
5 785 пользователей
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+).
5 620 пользователей
All Downloader Professional
All Downloader Professional finds links, images, videos, documents on a website an make them downloadable.
5 513 пользователей
Google Analytics Opt-out
Prevents the Google Analytics and Tag Manager's JavaScript APIs from collecting data and recording the user
5 374 пользователя
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.
5 191 пользователь
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
5 151 пользователь
WhatRuns
Discover what runs a website - This Firefox extension helps you identify technologies used on any website at the click of a button.
5 113 пользователей
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.
4 982 пользователя
SVG Gobbler
Open source browser extension for finding, editing, exporting, optimizing, and managing SVG content.
4 964 пользователя
