Easy Steam Collection
This will create an easier way to add all of your addons to any stream collection you create in a single click.
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Webcompat.com Reporter
Adds a button to allow users to easily report site compatibility issues at webcompat.com, for the active tab.
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HTML5 Universal Speed Hack
Speed up or slow down HTML5 and Unity games directly in the browser. Control functions like setTimeout, setInterval, Date.now, and more to precisely adjust game speed.
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a11y.css accessibility checker
a11y.css provides warnings about possible risks and mistakes that exist in HTML code through a style sheet. This extension also provides several accessibility-related utilities. See https://github.com/ffoodd/a11y.css-webextension/ for details.
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all-in-one
Facility for providing suite of tools for handling web components e.g. standard formats HTML, RSS, M3U8, and more.
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Twitter Video Downloader MP3 MP4
New Firefox Extension Twitter Video Downloader MP3 MP4 let you easy download any content from Twitter in few steps. Get any Video from Twitter and Download it in MP3, MP4, M4A and other best quality formats. Download video from Twitter TT with FF.
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Alexa RANK
Alexa Traffic Rank is Alexa Internet's free extension for Mozilla. Alexa Traffic Rank accompanies you as you surf, providing you with Alexa.com data about the sites you visit without interrupting your browsing.
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Responsive View Simulator
Seamlessly test website appearance on various mobile devices with this handy extension. Preview the responsive design in real-time.
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NumÉcoDiag
NumEcoDiag vous permet d’évaluer facilement l’écoconception de votre service ou produit numérique. Développé par la MiNumEco, il se base sur les 79 critères du Référentiel Général d’Écoconception de Services Numériques (RGESN).
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Extension Manager
Quickly and Easy enable, disable, uninstall, custom group or nickname, star or top and export CSV extensions for Mozilla addons.
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User-Agent Switcher and Simulator
Switch browser UserAgent to simulate different devices and browsers
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JS Injector
Inject JavaScript custom code into every webpage (e.g. to help with debugging).
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Rentgen
Rentgen to wtyczka, która automatycznie wizualizuje, jakie dane zostały ~~wykradzione~~ wysłane do podmiotów trzecich przez odwiedzane strony. Pozwala wygenerować raport lub treść maila, który można wysłać do administratora strony i/lub UODO.
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MDN Search
To use, type 'mdn' plus your search term into the url bar. Works for JavaScript and CSS reference articles.
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URL Increment Button
A 1-Click URL Increment Button for your toolbar. Works with or without URL Incrementer.
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Eval Villain
Hook native JavaScript functions before page load to see how a website uses them. Narrow down output based on the appearance of URL and session artifacts, user configured strings/regex, blacklists and more.
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Markdown Diagrams
Renders diagrams and charts code blocks into preview images. Supports many languages: PlantUML, Mermaid, C4, GraphViz, Erd, Nomnoml, BPMN, *Diag, Bytefield, Ditaa, Svgbob, UMlet, Vega, Vega-Lite, WaveDrom.
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