Is FIREFOX dying?

Addons:
>uBlockOrigin
>Violentmonkey (only 4chanX)

Open link in new tab
>massive time to load
>failed to load page
>F5 does nothing
>need to select url in the url bar and then press enter
>page finally loads

WTF /g/? This shit happens with every website randomly, is it a DNS thing? Also big slow down wich also happens randomly. I tested edge and it seems to work fine