SEO Analysis with Seoptimer
Just one click to SEO Analysis with Seoptimer
Outlines nofollow links, detects nofollow and noindex meta tags on webpages. Features website filtering and custom CSS outline styles
This extension predicts rating changes for Codeforces. It shows approximate deltas during and after the contest.
WordPress Theme and Plugins Detector
This tool detects theme and plugins used on WordPress sites and displays information about them.
OctoLinker – Links together, what belongs together.
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
Website Analysis & SEO Tool
Website SEO audit tool that provides website analysis in SEO, performance, validity, security, accessibility and other criteria.
Block Yourself from Analytics
Block your Google Analytics™ activity for the websites you own, no more false stats.
SEO Nofollow links highlighter
Highlight all nofollow links on any site you want. Excellent for SEO purposes.
Alix allows you to lint your HTML for Accessibility issues simply by applying a stylesheet that makes use of advanced CSS selectors.
Open in GIMP photo editor
Adds a context menu item to send images directly to GIMP photo editor
SEO Wykop - wycena stron, analiza SEO
Modify O Tabs
Automatically pin or rename a tab of a site you specify or change its icon.
An extention to show/inspect and analyze fonts in web-pages.
Can be used to view KML/KMZ Files in the browser.
W3C Markup Validation Service
This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc.
.net exception beutifier
Beautifies the standard .net error screen
Scanning website for vulnerable js libraries
Wayback machine website
Online service that have 452 billion web pages saved over time and who is domain tool in context menu
Browser Update Watchdog
Notifies you, whenever your browser has been automatically updated.
Automatically login to Basic Authentication using data based on URL regexp.
Web Developer Checklist
Analyses any web page for violations of best practices
Hitsteps Visitor Manager
Get your website analytics insight and get notified about updates and live support requests in your dashboard
CSS Gradient Inspector
Extends the Developer Tools, adding a sidebar that displays information about the gradients applied to the inspected element.
This extension show the element of a document in a tree view!
Colored favicons for Salesforce
Make the favicon in different color based on which salesforce instance your are loggen into.
ColorHexa - Color Information and Conversion
Color tool converting and providing information about any color.
SEO TOOLS - YATEO
Opens all the essential tools for SEO in one click.
GitHub Source Code Minimap
GitHub Source Code Minimap
Luminate Online Page Editor
Edit Luminate Online pages with just one click.
Builds Tab for Github
Adds a builds tab to Github repos.