Bug issue: When this add-on is enabled, I could not log in to overleaf. The overleaf website reports a bug: "reCAPTCHA placeholder element must be empty".
ryzen 4800h, Ubuntu 20.04.3 LTS x86_64, firefox 92.0 (64-bit), this add-on version 1.0.9.86 .

Be careful when using this tool, it injects a redirection to out going links. Why would they do that! Not a safe thing to do. Who knows what other things are injected or hijacked.

Doesn't work on Youtube. Can't see anything on the page, no video files. A useless addition.

Don't work on all websites.

This add-on still works with Dailymotion, but not YouTube.

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doesn't work on most site

Adware. It replaces some links you click with third party referrer sma***edirect.de

video was about 20 minutes long but this app see only files smaller then 1 MB

Tested on 02/05/2021.
No download button on youtube.com!! So I can only assume that this FF addon is another scam to get your browser data!!

Contains adware

Since there aren't any links to contact the developer anymore, I guess I'll ask here. Will you please explain the purposes of the particular permissions this addon requires? Why do you need to access my data for all websites? Etc.