The latest Update of Firefox does not work with YouTube?

On a few days ago, I went on YouTube to upload a video. For some reason, it gave me a message that says "request invalid. Authentication has expired.
Not only that, if I do other things such as taste/do not love a video, or add a video to my favorites or another list of reading, it is said that the service is not available.
I also had a problem trying to respond to the other comments in the videos. Anytime I type on my comment and click the post button, it says something like "error, try again."
Now, when it comes to other things like just watching and looking for videos, I have no problem.

I thought it might have something to do with the latest update of Firefox, because I tried to use YouTube with other browsers and it works perfectly well, and I was not having problems with YouTube before the update.

No idea if the update could affect something that causes these questions?

We have seen reports that causes the extension DownloadHelper 4.9.14 with some features on YouTube.

Tags: Firefox

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