Preact Developer Tools
Only works with Preact 10.1.0 upwards Debugging tools for Preact. This extension allows you to inspect the component hierarchy and change properties on the fly.
661 users
Font Inspector (WebExtension)
Click on any element to get the font info in a page popup
657 users
FiddlerFox
Allows you to point Firefox to your fiddler instance if it doesn't refresh the proxy settings after Fiddler has started.
657 users
YouLoop - Repeat video/audio endless on YouTube
Repeat video/audio endless on YouTube. Furthermore a partition loop function is enable.(for HTML5) -- Wiederholt Video/Audio endlos auf YouTube. Des Weiteren gibt es die Möglichkeit, nur einen bestimmten Ausschnitt endlos zu wiederholen.(für HTML5)
656 users
Serpstat Website SEO Checker
Instantly check your website's SEO, analyze competitors and get advantage of powerful search analytics in one place.
653 users
Onion Control (anonymous proxy)
Brings the anonymity of the Tor network and modifies few settings to protect user privacy
650 users
GitHub Gloc
Сounts lines of code on GitHub Works for public and private repositories. Counts lines of code from: - project detail page, - user's repositories, - organization page, - search results page, - trending page.
649 users
Btools
Bilibili tools,increase user experience
646 users
Color Picker For Firefox
HEX Color Picker, RGB Color Picker, Color Picker EyeDropper, Pick color from web page (Color Picker For Firefox)
643 users
Compat Report
Shows a report of browser compatibility issues using data from MDN
639 users
Word Count Tool
A word counter that counts the number of words, characters without any extra clicks. Just select the text and right click to select the context menu to invoke the report. It gives detail report about the numbers words, characters, sentences...
637 users
Responsify viewer
A simple slider to check the responsivness of the website.
628 users
ScrapeMate Beta
Scraping assistant tool. Editing and maintaining lists of CSS/XPath selectors across webpages. Element picker (from SelectorGadget). Presets manager. Active preset JSON view/edit. JavaScript toggling per tab.
628 users
Hoverify
All-in-one browser extension to improve your web dev experience.
627 users
Discord Rich Presence
Discord rich presence extension with open API.
625 users
ActiveFlash
Modify the navigator.platform while simulating a mobile viewport
625 users
Scan QR code
Scan QR code through Webcam and screenshot
624 users
JSON Beautify It
Tool for beautifying JSON data, AJAX or API responses in browser
621 users
FuckCSDN
Clean CSDN's limitation scripts 清理CSDN限制脚本
621 users
Measure Everything
Element distance measurement tool.
619 users
Frame
This extension connects web apps to Frame. Frame is an Ethereum wallet that runs as a native desktop application. It manages all of your accounts, tokens and items and allows to seamlessly and securely connect them any app.
619 users
Remove/Crop-to Selection
Remove or crop-to selection from context menu so that you can print or save only the parts you need. Additionally you can remove clicked elements and also remove ads, videos or other third-party content from web pages.
617 users
Night Mode - Dark Theme
A universal dark theme. Night Mode is an extension that helps you quickly turn the screen (browser) to dark at night time. Toolbar button serves as an On & Off switch which enables you to easily and quickly turn the extension On or Off.
614 users
All-In-One PageSpeed Test
Test any website performance with main test tools with one single click: Google PageTest Insights, GTmetrix, Yellow Lab Tools
608 users
Inspector DOM Sidebar
Adds a new sidebar to the developer tools inspector panel, that shows the properties of the selected element.
605 users