This will take the URL of the current tab and send it to PageSpeed Insights for a web performance analysis.
Novibyte Issues Plugin
Jira Issues Management
Flag & WHOIS SEO Domain Full Info
Return the domain's IP address , information about security, localization of server, ping, etc.
Google Analytics Debugger
A browser extension for debugging Google Analytics tracking code
Open in GIMP photo editor
Adds a context menu item to send images directly to GIMP photo editor
SEO Analysis with Seoptimer
Just one click to SEO Analysis with Seoptimer
Block Yourself from Analytics
Block your Google Analytics™ activity for the websites you own, no more false stats.
Quickly view the HTTP headers of the current tab.
Fast balance viewer for your affiliate networks and partner programs
Remove cookie(s) for the current domain
Remove cookie(s) for the current site with just one click
Web Developer Checklist
Analyses any web page for violations of best practices
Shows the response times and uptime of a desired server. Useful to see how performs internet or a wireless access point.
This extension show the element of a document in a tree view!
Custom menu allows the user to create a menu to access various network resources.
Interacts with Visual Studio extensions supporting Browser Link
Browser Update Watchdog
Notifies you, whenever your browser has been automatically updated.
Open in Vivaldi
Open current page, link, or all tabs in the Vivaldi browser.
Random password generator
A simple random password generator for Opera browser
Hitsteps Visitor Manager
Get your website analytics insight and get notified about updates and live support requests in your dashboard
SEO Nofollow links highlighter
Highlight all nofollow links on any site you want. Excellent for SEO purposes.
Edit with Paint.Net
Adds a context menu item to send image links directly to Paint.Net photo editor
A tool for web developers to preview blend modes on different page elements.
ColorHexa - Color Information and Conversion
Color tool converting and providing information about any color.
md5 hash generator
MD5 hash generator (offline mode)
Zend Debugger Toolbar
Provides integration with Zend debugging and profiling tools.
Builds Tab for Github
Adds a builds tab to Github repos.
Corser - Authorize CORS requests
Cross-browser extension for authorizing cross-origin resource sharing (CORS) requests. This extension can be installed on browsers supporting the WebExtensions API (https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions) It intercepts all CORS requests and responses headers, and records/adds/changes their values so as to authorized unauthorized CORS requests. Use this extension only for testing purposes
Nextsense XML Signing Component
Signing XML document.
Scanning website for vulnerable js libraries
The simplest extension for working with web fonts
Picture in Play
Indicates whether the `picture` element is in use on a page.