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!
Super Auto Refresh
Auto-refresh (reload) pages, on a selected interval. NO ADs. SUPER EASY.
Redesign the web with Stylus, a user styles manager. Stylus allows you to easily install themes and skins for many popular sites.
User-Agent Switcher is a quick and easy way to switch between user-agents.
Download all Images
a powerful and customizable extension to save selected images from the current tab page
Podpis elektroniczny Szafir SDK
Adds a toolbar button with various web developer tools. The official port of the Web Developer extension for Firefox.
Simple yet powerful Cookie Editor that allow you to quickly create, edit and delete cookies without leaving your tab.
HTML5 Editor with CSS, JS, HTML validator and beautify code
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.
RESTMan is a browser extension to work on http requests.
SEOquake is a free plugin that provides you with key SEO metrics, along with other useful tools such as SEO Audit and many others
Adds Access-Control-Allow-Origin, Access-Control-Allow-Methods and Access-Control-Allow-Headers headers for CORS.
Modify Header Value
Add, modify or remove a header for any request on desired domains.
A REST client for the rest of us
The Vewd TV Simulator enables any developers to test and debug their HTML5 apps for the Vewd App Store.
Edit cookies related to the current page and all its sub-frames right from a popup
An easy-to-use font inspector to get CSS styles of the selected element
Go full screen with one click on the full screen button. That includes also the full screen movies such as YouTube, Vimeo, etc.
Quick SEO analysis of websites and pages, designed for webmasters and SEOs.
Internet Speed Test
Test your internet connection speed (upload and download) from a toolbar panel
PerfectPixel by WellDoneCode
This extension helps develop your websites with pixel perfect accuracy!
BuiltWith Technology Profiler
Find out what the website you are visiting is built with using this extension.
Responsive Web Design Tester
Responsive Web Design Tester is a quick and easy way to test your responsive website.
GitHub code tree on steroids
Live HTTP Headers
Monitor all HTTP/HTTPs traffic from your browser.