external-app-launcher
Launch certain URLs with external programs.
This can be used to block a set of urls from being loaded, and another set of urls to be forwarded to a remote endpoint. For example, to open youtube urls in an external player.
External App Launcher - Firefox Add-on
External App Launcher is a Firefox add-on that enables the launching of specific URLs with external programs. It can block certain URLs from being loaded and forward others to a remote endpoint, such as playing YouTube videos in an external player.
Add-on stats
Weekly download count: 1
Firefox on Android: No
Risk impact: High risk impact 
Risk likelihood:
Manifest version: 2
Permissions:
- webRequest
- webRequestBlocking
- storage
- <all_urls>
Size: 25.09K
Ranking
Other platforms
Not available on Chrome
Not available on Android
Not available on Edge
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Add-on summary
This addon has a single function: to forward certain URLs to an external API, which should be in charge of launching an external program. The default configuration will
Block .googlevideo.com/videoplayback (to prevent playback within the browser) Forward https://www.youtube.com/watch?v (for remote playback) There's an example http server packaged with the extension that launches mpv on the urls it receives, it can be extended to handle PDFs, etc. Icon by Freepik from flaticon.com.
Add-on safety
Risk impact
external-app-launcher requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk likelihood
external-app-launcher has earned a fairly good reputation and likely can be trusted.
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