Pesticide for Firefox
This extension inserts the Pesticide CSS into the current page, outlining each element to better see placement on the page. Copyright (c) 2014 Paul Molluzzo picked up by Samuel Corsi-House in 2020.
234 users
Eval Villain
Hook native JavaScript functions before page load to see how a website uses them. Narrow down output based on the appearance of URL and session artifacts, user configured strings/regex, blacklists and more.
232 users
FeHelper(前端助手)
FE助手:前端开发必备工具集,涵盖JSON格式化、代码美化与压缩、二维码生成、网页定制、便签笔记等数十种实用功能。界面现代、响应式设计,极致性能优化,国内可用,助力高效开发!
232 users
Detector Whats Font
You can find out the font of a web page very easily.
232 users
Markdown Diagrams
Renders diagrams and charts code blocks into preview images. Supports many languages: PlantUML, Mermaid, C4, GraphViz, Erd, Nomnoml, BPMN, *Diag, Bytefield, Ditaa, Svgbob, UMlet, Vega, Vega-Lite, WaveDrom.
230 users
Simple JavaScript Injector
This addon creates a small popup that lets you paste some JS code and inject it into the page you are currently seeing.
229 users
Vue Performance Devtool
A devtool extension for inspecting the performance of Vue components.
229 users
Google Analytics Logger
This extension serves to act like a logger for various google analytics events on any site. ‣ Supports page views, interaction events, user timing, social and exception events. ‣ Works with legacy GA ‣ Logs duplicate events and error events
228 users
Split-Screen Browser Tool
Easily split your browser window to view multiple websites side by side.
228 users
Polypane helper
Open the current page in Polypane using the button in your task bar, or right click any link to open that URL in Polypane. Polypane, the browser for responsive web development and design
228 users
Extension Manager
Quickly and Easy enable, disable, uninstall, custom group or nickname, star or top and export CSV extensions for Mozilla addons.
225 users
Form Filler
This extension will help developers to fill random values in the form.This extension is a boon for developers as this helps developers to fill forms easily. Developers and testers can use this to add junk values.There are a lot of easter eggs as well
224 users
OptiSearch
Display ChatGPT, StackOverflow, Wikipedia, etc. answers alongside Google Search results !
222 users
Code Web Chat Connector
Connect your editor with free chatbots. Include websites in context.
222 users
User Agent
Change your user agent QUICKLY and EASILY! Our extension includes SEVERAL ADVANCED methods of user-agent spoofing! To test its efficiency: https://webbrowsertools.com/useragent/
221 users
VPN Master - Free HTTP and SOCKS Proxies
A free reliable VPN solution based on HTTP, SOCKS4, and SOCKS5 proxy servers
221 users
かんたん文字数カウント
選択したテキストの文字数を数えることができるFirefox アドオンです。 記事の文字数の確認や校正などにご活用ください。
221 users
Easy QR
Easy QR code, the best QR extension. Generate offline QR Code with a simple click!
220 users
SCTPextension
SCTPextension enables the browser to communicate with the SCTP native application. It so allows a web application to make cryptographic operations (key generation and signatures) on a smart card phisically connected to the host.
220 users
Odoo Easy Debug
This extension changes to debug mode and vice-versa in Odoo ERP. Usage: - One click to activate and disable debug mode - Double click to activate and disable debug mode with assets ONLY FOR ODOO/OPENERP For more info see github.
219 users
WordPress Theme Detection - ThemeDetect.com
Find out which theme a WordPress site is using with the help of ThemeDetect.com
218 users
Website Technology Detector
Detects technologies used in websites
217 users
Switch Direction
Switch Direction in edits, useful for mixed RTL and LTR texts editing.
217 users
CSS Layout Debugger
When activated, CSS Layout Debugger applies dynamic backgrounds and outlines to elements on the page in order to assist in layout debugging.
217 users
ViewCached
Checks the cached version of the site on ViewCached.com
217 users