Extensions
Caffeine
Keep awake which prevents the OS from automatically going to sleep, dimming the screen or starting screen savers
Selenium Page Object Generator
A nimble and flexible Selenium Page Object Model generator to improve agile testing process velocity.
Web Capture for Jira
Take a screenshot, annotate it and upload directly to Jira.
SelectorsHub
xPath plugin to auto generate, write and verify xpath & cssSelector.
(X)HTML5 Checker
A small extension to validate the markup of current tab
Block Yourself from Analytics
Block your Google Analytics™ activity for the websites you own, no more false stats.
.no { CSS }
Opera 12 reminiscent Shift-G CSS zapper (use Alt-G)
CSS3 Button Maker
Is CSS button code generator free easy tool that allows you create beautiful and elegant CSS web buttons in few clicks
Website Analysis & SEO Tool
Website SEO audit tool that provides website analysis in SEO, performance, validity, security, accessibility and other criteria.
JavaScript QR Code
Make QR Codes in JavaScript
Hitsteps Visitor Manager
Get your website analytics insight and get notified about updates and live support requests in your dashboard
Open in GIMP photo editor
Adds context menu items to send image links and image files directly to the GIMP photo editor
Piral Inspector
The official Piral developer tools browser extension.
Nextsense XML Signing Component
Signing XML document.
Webfonting it!
The simplest extension for working with web fonts
View Page Source
Get access to the page source with the click of a button
AMP Validator
Automatically checks each page for AMP validation.
PIX Studio Plugin
PIX Studio Plugin
CF-Predictor
This extension predicts rating changes for Codeforces. It shows approximate deltas during and after the contest.
MultiPass
Automatically login to Basic Authentication using data based on URL regexp.
PageSpeed Insights
This will take the URL of the current tab and send it to PageSpeed Insights for a web performance analysis.
Sitemap Explorer: Check and View XML Sitemaps
This extension helps you find, inspect, export, and view XML Sitemap files for any site you navigate in a browser.
Apple Docs Force Default Language
Forces Apple's developer documentation to always open in a specific language
PixelGrid
The tool to overlap your website layout with a grid.
Right Click Validator
Right click on any webpage to validate it using the W3 NUValidator service.
Extensions for Mermaid
A browser extension for Chrome, Opera & Firefox that adds Mermaid language support to GitHub. A fork from the not updated GitHub + Mermaid extension.
Nextsense PDF Signing Component
Signing PDF document.
Tabby Extension
Easily add BookMarks to Tabby from your preferred browser!
Income monitor
Fast balance viewer for your affiliate networks and partner programs
KML/KMZ Viewer
Can be used to view KML/KMZ Files in the browser.
sha1 hash generator
SHA1 hash generator (offline mode)
NoFollow
Outlines nofollow links, detects nofollow and noindex meta tags on webpages. Features website filtering and custom CSS outline styles