JSON Formatter
Formats JSON automatically! Open Source, Available with 60+ Themes, Syntax Highlighting, automatically linkifies links and more.
3,150 个用户
Google Analytics Debugger
Prints useful information to the JavaScript console by enabling the debug version of the Google Analytics Javascript. P.S: this add-on is migrated from Chrome store.
3,150 个用户
ffCK Overlays
Right-click any element to remove it. Inspired by the Chrome extension "F*ck Overlays".
3,133 个用户
SEO META 1 COPY
This is an extension that allows you to easily check SEO-related meta information and copy it with one click.
3,121 个用户
Omnibug
The leading browser extension for analytics and marketing technology testing and debugging
3,115 个用户
CopyTables
Select table cells, rows and columns with your mouse or from a context menu. Copy as rich text, HTML, CSV and TSV
3,111 个用户
FirePHP
Log from PHP to a devtools panel.
3,105 个用户
Referer Control
Control the HTTP Referer on a per-site basis.
3,099 个用户
REST Client APIsHub
A Modern and simple API testing tool!
3,090 个用户
Print for Firefox
打印当前网页
3,066 个用户
Jazz-MIDI
MIDI support for browsers
2,922 个用户
Try XPath
This add-on displays the result of evaluating XPath expression or CSS selector.
2,845 个用户
ICPBravoAccess
ICPBravo Access ICPBrasil and General PKI Extension.
2,815 个用户
webhint
Check for best practices and common errors with your site's accessibility, speed, security and more.
2,774 个用户
dataslayer
Debug and test tag management (Google Tag Manager, Adobe Launch / DTM, Tealium) and analytics (Google Analytics, Adobe Analytics) implementations from within Developer Tools.
2,773 个用户
Merge Windows
Merges the tabs from multiple windows together into one window. Extension won't show context menu item when there aren't more than one window of the same type to merge together. Private windows will only merge with private windows not normal.
2,752 个用户
VisBug
Open source browser design tools
2,691 个用户
Clockwork
php dev tools integrated to your browser
2,663 个用户
HackTools
Hacktools, is a web extension facilitating your web application penetration tests, it includes cheat sheets as well as all the tools used during a test such as XSS payloads, Reverse shells to test your web application.
2,661 个用户
FB unseen
Blocks the ”seen” feature of the facebook messenger, and your friends will no longer be able to see if you read their messages.
2,639 个用户
Wizdler
Parses the WSDL files and generates SOAP messages for you.
2,629 个用户
SEO Analysis & Website Review by WooRank
Instant SEO analysis and website reviews for SEO, mobile, usability and social media. The freshest data when and where you want it.
2,611 个用户
Pesticide
This extension inserts the Pesticide CSS into the current page, outlining each element to better see placement on the page.
2,606 个用户
ReCaptcha Solver
Verify Google ReCaptcha V2 automatically with :2Captcha, DeathByCaptcha, ImageTyperz, RuCaptcha, Anti-Captcha, BestCaptchaSolver and EndCaptcha Without API or TOKEN key it won't work!!
2,589 个用户
SN Utils
ServiceNow Productivity tools. (Personal work, not affiliated to ServiceNow)
2,562 个用户