PR2R
Adds a button to GitHub Pull Request pages to create a Release from the current Pull Request
1 user
Broken Link Scanner
Scans all links on the current page and shows which ones are broken (4xx/5xx).
MASTER TOOLS 9
MASTER TOOLS 9 - Circuit stats, meteo, strategie, iGP strategy by Salvo Slix
Vim-style Browser
Navigate web pages using Vim shortcuts.
Page Preserver
Preserve webpages forever: submit to Wayback Machine and browse existing archives.
Quick Trade Panel
A lightweight and practical add-on that adds quick action buttons to web pages for faster form interactions.
1 user
Limpador de LocalStorage
Inspect, search, delete and export localStorage and sessionStorage for any site. Supports English and Portuguese (BR).
CSSOverride
Override any site's CSS with your own rules — saved per domain
LocalStorage Cleaner
Inspect, search, delete and export localStorage and sessionStorage for any site. Supports English and Portuguese (BR).
Screen Color Grab
Sample pixel colors from any part of your screen. Get HEX, RGB and HSL values with one click.
Restore closed tab
Restore the last closed tab with one click or choose from recently closed tabs.
AB Test Detector
Detect A/B testing and feature flag tools on any webpage: Optimizely, VWO, LaunchDarkly, Statsig, and 15 more.
Page Error Monitor
Capture and display all JavaScript errors, unhandled promise rejections, and console.error/warn calls in real time.
Fix MTN Shop
I fixed what the MTN UI team left behind, so you can shop in peace.
CipherChat
Encrypt and decrypt selected text in any input field using AES-256-GCM. Set a shared password, then right-click to encrypt before sending or decrypt after receiving.
JWT Decoder
Decode and inspect JWT tokens instantly. View header, payload and expiry. 100% offline.
SEO URL Inspector
Check the canonical URL of any page, compare it with the current URL, and inspect SEO meta tags.
URL Redirect Chain
Trace the full HTTP redirect chain for any URL. Shows status codes at every hop and detects redirect loops.
Experiment Finder
Detect A/B testing and feature flag tools on any webpage: Optimizely, VWO, LaunchDarkly, Statsig, and 15 more.
Connection Tester
Measure HTTP response latency to any host. Run up to 50 pings and see min/avg/max with a live bar graph.
Display Info
Display screen resolution, viewport size, device pixel ratio, color depth, orientation, and aspect ratio.
Page Performance Status
Detects performance issues like long tasks and low FPS.
