Modify HTTP request and response headers
Custom Style Script
Live HTTP Headers
Monitor all HTTP/HTTPs traffic from your browser.
OCR - Image Reader
A powerful optical character recognition (OCR) extension to capture and convert images to text
WordPress Theme and Plugins Detector
This tool detects theme and plugins used on WordPress sites and displays information about them.
Block Yourself from Analytics
Block your Google Analytics™ activity for the websites you own, no more false stats.
PDF API HTML5
Google Analytics Debugger
A browser extension for debugging Google Analytics tracking code
This extension allows you to add your own custom website specific CSS style sheets.
Live editor for CSS and LESS - Magic CSS
Live preview of CSS/LESS code with an in-page editor. Autocomplete, convert LESS to CSS, beautify, minify, CSS reloader, linter, ...
View all HTTP Requests and Responses sent between the Web browser and the Web server.
Edit the Page
Toggles the 'Design Mode' so that you can edit the contents of the page.
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!
Quickly view the HTTP headers of the current tab.
Shows the response times and uptime of a desired server. Useful to see how performs internet or a wireless access point.
ChroPath for Opera
AutonomIQ offers a developers platform ChroPath to generate and validate unique selectors like relative xpath with iframe support
An extention to show/inspect and analyze fonts in web-pages.
SEO Analysis with Seoptimer
Just one click to SEO Analysis with Seoptimer
Modify Header Value
Add, modify or remove a header for any request on desired domains.
Website Analysis & SEO Tool
Website SEO audit tool that provides website analysis in SEO, performance, validity, security, accessibility and other criteria.
DNS Checker - SEO and Domain Analysis
SEO and Domain Analysis Tool by DNS Checker. Provides SEO Report, Meta Redirects and 404s, Client IP, Domain IP & Geo Location, etc
Web Capture for Jira
Take a screenshot, annotate it and upload directly to Jira.
Edit with Adobe Photoshop
Adds a context menu item to send image links directly to Adobe Photoshop photo editor
A small extension to validate the markup of current tab
A browser extension that brings a new GitHub experience
Rabbit URL Opener
Rabbit URL Opener - Bulk URL's Opener Extension just lets you open multiple URLs at once
Random password generator
A simple random password generator for Opera browser
The simplest extension for working with web fonts
Adds new items to browser context menu that open various analyzes of browsed web pages and sites.