Hreflang Tag Checker V3
Automatically checks hreflang tags on a page, crawls linked language versions, and verifies correct reciprocal links—ideal for quickly auditing international SEO setups.
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Show and Copy Image Properties
You can see the properties of the image and copy them to the clipboard easily.
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Codext
Codext harnesses the power of the Monaco Editor by dynamically inserting it into code webpages and enables standard editor features such as syntax highlighting, section folding, advanced editing and code formatting.
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Media Stream Detector
Detects and collects M3U8 streams and subtitle files from web pages
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Dead Link Finder
Finds dead links on any webpage. Shows HTTP status for every link with color coding.
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SEO URL Inspector
Check the canonical URL of any page, compare it with the current URL, and inspect SEO meta tags.
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SubeDown
A fully open-source, privacy-focused, and free Firefox-based extension for downloading images and videos from web pages, including segmented videos.
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InlineDispositionV2
Change Content-Disposition headers from 'attachment' to 'inline'. Inspired by https://addons.mozilla.org/en-US/firefox/addon/inlinedisposition/
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AI Status Notifier
New! Now supports Anthropic Claude AND Google Gemini. Many people have switched to Claude or Gemini for their AI needs. Also, now visible when in dark mode! A Firefox add-on that lets you know when ChatGPT, Claude, or Gemini has finished typing.
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Checkbox Checker
Checkbox Checker is a Firefox add-on designed to enhance your browsing experience by streamlining the management of checkboxes on web forms. This intuitive tool simplifies the process of selecting or deselecting multiple checkboxes
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ReRes
Change the response of the request. ReRes可以用来更改页面请求响应的内容。通过指定规则，您可以把请求映射到其他的url，也可以映射到本机的文件或者目录。ReRes支持单个url映射，也支持目录映射。
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DataLayer Lens
A powerful, beautiful tool for monitoring GTM dataLayer events in real-time
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rob-bugson
Eases the divide between GitHub and Bugzilla by adding links to GitHub pages to Bugzilla things.
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IndexedDB Viewer
Browse and manage the IndexedDB databases of any website. View, inspect, and delete records.
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