@iamkarlson said in Some websites raises JS errors and don't work even with all extensions disabled and disabled ad blocker:
Oh! That actually worked!
Nice!
And no, you should not need to create a new profile: with “soft reset” I just meant to delete all browser data (Extras -> Delete Browser Data) from "All time" and everything EXCEPT "Sync password & Passwords" after you did the temp profile thingy, delete brosing data and then restart the browser everything should be fine again.
So with that you won't lose settings or anything and you don't need to create a new profile either.
If it still occurs, just reload the Vivaldi Binary / Package again, like a reinstallation, but this also should not affect your existing profile & settings.
But I think temp profile, purge browsing data, restart should be enough already, at least that fixed it for me too.
Glad if this helps in your case too! Fingers crossed!