LoadTabOnSelect
Load newly-opened background tabs on selection, rather than automatically in the background. This addon uses the WebExtensions API, and therefore fully supports Firefox 57+.
294 users
Respieck - Responsive Tester
Respicek: Your responsive design companion. Seamlessly preview and optimize your creations across devices. Intuitive interface, ensuring pixel-perfect adaptability from smartphones to desktops. The key to effortless responsiveness.
293 users
Twitch Text Emotes - temotes
Save your favorite text phrases ("LULW", "KEKW", emoticons, etc.) directly into the standard Twitch Emotes panel and use them in Twitch chat. Simple and useful.
291 users
Meta tags inspector
Adds a new panel to the developer tools. This panel shows a clear overview of all metatags
290 users
Base64 Encoder and Decoder
Link Webbie Firefox add on that enables you to encode and decode strings in base64.
288 users
CLAUDEZILLA
Browser automation for Claude Code and terminal AI harnesses. Control Firefox with full DOM access, screenshots, and page analysis. No Chrome, no telemetry.
286 users
Proton Calendar Shortcuts
Adds customizable keyboard shortcuts (e.g., next, previous, today, ...) to Proton Calendar.
285 users
Full Screen Multiple Monitor
This addons support to make automatically fullscreen at the startup for modern browser (Quantum version). This addons purposed for dashboard or kiosk system and can work for multiple monitor. First, set the homepage and then viola. all set sail!
282 users
Salesforce Inspector Advanced
Productivity tools for Salesforce administrators and developers to inspect data and metadata directly from the Salesforce UI.
280 users
MobX Developer Tools
Dev-tools for MobX and React. Use this extension to debug pages containing MobX 3.1.15 or higher (https://mobx.js.org/) For more information, please refer to https://github.com/andykog/mobx-devtools/blob/master/README.md
280 users
Modify Headers DNR
Modify request and response headers through the DeclarativeNetRequest API
279 users
DOMLogger++
DOMLogger++ allows you to monitor, intercept, and debug JavaScript sinks based on customizable configurations.
279 users
ChatGPT Export - Markdown & HTML
Télécharge le fil de discussion actuel de votre conversation avec ChatGPT au format Markdown ou HTML. -> Solution parfaite pour sauvegarder pour Chat hors ligne
278 users
hektCaptcha: hCaptcha Solver
Automatically solve hCaptcha using AI. Locally, with Firefox extension.
276 users
Gemini Chat Exporter
Export Google Gemini chat history to structured JSON files locally. Features include bulk selection, search/filter, and automatic sidebar syncing. Privacy-focused: all scraping happens on your device.
276 users
Scraper Master - Simple Web Scraping
Your ultimate companion for effortless web data extraction.
276 users
![[STG plugin] Open Manage groups](https://addons.mozilla.org/user-media/addon_icons/986/986719-64.png?modified=1856603d){kind=icon}
