CryptoPro Extension for CAdES Browser Plug-in
Расширение позволяет использовать КриптоПро ЭЦП Browser plug-in в браузере. Для работы требует установленного ЭЦП Browser plug-in.
EditThisCookie is a cookie manager. You can add, delete, edit, search, protect and block cookies!
Redesign the web with Stylus, a user styles manager. Stylus allows you to easily install themes and skins for many popular sites.
Super Auto Refresh
Auto-refresh (reload) pages, on a selected interval. NO ADs. SUPER EASY.
User-Agent Switcher is a quick and easy way to switch between user-agents.
Adds a toolbar button with various web developer tools. The official port of the Web Developer extension for Firefox.
Save All Images
a customizable extension to save selected images from the current tab page
Fast JSON viewer - highlights, shows items count/size, handles large files
Open in Google Chrome
Open current page, link, or all tabs in the Chrome browser.
HTML5 Editor with CSS, JS, HTML validator and beautify code
Podpis elektroniczny Szafir SDK
RESTMan is a browser extension to work on http requests.
Go full screen with one click on the full screen button. That includes also the full screen movies such as YouTube, Vimeo, etc.
SEOquake is a free plugin that provides you with key SEO metrics, along with other useful tools such as SEO Audit and many others
An easy-to-use font inspector to get CSS styles of the selected element
PerfectPixel by WellDoneCode
This extension helps develop your websites with per pixel accuracy!
Quick SEO analysis of websites and pages, designed for webmasters and SEOs.
Extension source viewer
View source code of extensions in the Chrome Web Store, Firefox or Opera addon gallery. Has button to install from Chrome Web Store.
A REST client for the rest of us
Internet Speed Test
Test your internet connection speed (upload and download) from a toolbar panel
Firebug Lite for Opera 15+
The Vewd TV Simulator enables any developers to test and debug their HTML5 apps for the Vewd App Store.
Live HTTP Headers
Monitor all HTTP/HTTPs traffic from your browser.
Adds Access-Control-Allow-Origin, Access-Control-Allow-Methods and Access-Control-Allow-Headers headers for CORS.
Browserling - Cross-browser testing
Cross-browser test websites in the most popular browsers such as Internet Explorer, Edge, Chrome, Firefox, Safari and Opera. Try for free!
Responsive Web Design Tester
Responsive Web Design Tester is a quick and easy way to test your responsive website.
Cookie-Editor lets you efficiently create, edit and delete cookies for the current tab. Perfect for developing, quickly testing or even manually managing your cookies for your privacy.
Edit cookies related to the current page and all its sub-frames right from a popup