"Kernel-Power 41"が頻発している理由がこいつでした。
電源やハードウェアを疑い新しいPCでもこのエラーが続くので怪しいと思いこのアドオンオフにしたところ一発解決。今現在何週も安定動作しています。
他のブラウザやFirefoxを放置した状態でPCの強制シャットダウンが頻発してたのでしかもアドオンなので盲点でした。
恐らくメモリにかなり負担をかけているのだと思います。ブラウザ全体の動作が遅くプチフリーズのような症状も大体こいつです。
もしこの症状に悩まされている方は試す価値はあります。

Excelente funcionamiento. Gracias!

Cela fonctionne très bien, merci au développeur :)

The companion app does not work on Linux, making this nearly useless.

Greatest App I've ever used for Video Downloading, Super Easy, Absolutely NO Bullcrap, no ads.

Just a simply amazing super easy extension add on that I feel everyone needs to download & utilize!!!

Keep up the great work guys!!!

Works great on streaming.

thx

Works great on streaming. Must have. Less for Youtube

The companion app was also able to run on linux. Best downloader.

網頁下載影音檔的最佳工具，便利又快速！

Kituno program ! Nagyon meg vagyok elegedve vele, ajanlom mindenkinek !

Requires the additional download and installation of a program on the computer, and then, only after installing that and downloading a video, does it inform you that it watermarks the videos, neither of which are mentioned in the info about the extension. Finally, the app is semi-obscurely named "VdhCoApp" as a final insult, making it harder to find to remove. Just use TarTube and forget this garbage.

Does the trick! And works on some sites that similar add-ons don't work for so worth a try if you're struggling with that.

Excellent tool for downloading all sorts of videos from many sources.

It`s amazing, it has been helped me a lot.