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.

What is external-app-launcher?
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.
By: David
Users: 14 ▲ 1
Version: 1.0 (Last updated: 2019-10-07)
Creation date: 2019-10-06
Weekly download count: NaN
Firefox on Android: No
Risk impact: High risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
  • webRequest
  • webRequestBlocking
  • storage
  • <all_urls>
Size: 25.09K
Stats date:

Other platforms

Not available on Chrome
Not available on Edge
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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.

Risk impact

external-app-launcher is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install external-app-launcher if you trust the publisher.

Risk likelihood

external-app-launcher has earned a fairly good reputation and likely can be trusted.

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