Simple Link Checker
Redirect Link Checker will check all links on your page to find broken and redirect links
877 users
CustomCSS Injector
- Apply any CSS rules for any websites, including iframes. - Whitelist and Blacklist functionality - Apply CSS rules to specific URLs, Domains or Globally - Syntax highlighting & line numbers - Update without page refresh
875 users
Time Travel
Fake the current date, time and time zone in JavaScript Date or Intl.DateTimeFormat objects. Time Travel helps you debug time-dependent frontend applications without having to change the system time.
871 users
show-my-ip
This add-on allows you to view your IP address from your browser without having to navigate to sites like https://www.whatismyip.com/ Furthermore, as this add-on is open source, you don't need to be worried about your privacy.
871 users
PageSpeed Insights
Open PageSpeed Insights to analyze the web page on the current opened tab.
869 users
🚀 Free YouTube: Обходите Блокировки
Free YouTube — это расширение для браузера, которое решает вопросы, как обойти блокировку YouTube, и помогает ускорить его работу. Независимо от того, где вы находитесь, этот инструмент обеспечит стабильный доступ к платформе и улучшит её производите
856 users
Website and IP address blocker
Block Websites and IP address. Additional feature: Option to only block the homepage.
856 users
Resize Window & Viewport
Resize browser window or viewport to desired screen widths. Firefox's Responsive Design Mode (Ctrl + Shift + M) is great for mobile devices emulation.
848 users
Userchrome Toggle Extended
This extension allows you to toggle userchrome.css styles on-the-fly with buttons and hotkeys. You'll be able to switch up to six styles
842 users
Quick Accept-Language Switcher
Provides a quick way of changing the HTTP Accept-Language header so you can view and test websites with a different locale.
841 users
Disable CSP for a minute
Temporarily disables CSP for the current tab's website. Right click on the page, then disable CSP.
836 users
LocalStorage Editor
Add, edit, copy, remove, export and import local- and session- storage data
824 users
SiteAnalyzer SEO Tools
SiteAnalyzer SEO Tools is a browser extension providing a set of tools for analyzing SEO indicators of web site, technical audit (links, images, meta tags, content, indexing, etc.), URL analysis and correction of SEO optimization errors.
820 users
RTL All Fixer (Right To Left Fixer)
Fixes right-to-left text direction issues and manages RTL sites To fix the problem of displaying Farsi and Arabic texts while chatting or working with artificial intelligence such as Chatgpt Poe DeepSeek Grok ... برای رفع مشکل نمایش متن فارسی عربی
814 users
React Context DevTool
React Context DevTool is a debugging tool for React Context and useReducer API.
798 users
TanStack Query DevTools
DevTools extension for debugging TanStack Query applications. Inspect queries, mutations, and cache state in real-time.
793 users
Open With Photoshop
Open With Photoshop is a new companion for web and graphic designers to open up any web image with Adobe Photoshop via a single and quick mouse click.
789 users
