Diễn đàn hỗ trợ Firefox

Even though I am signed in to the main support page, attempting to sync tabs leads to the page

"Blocked by Content Security Policy

This page has a content security policy that prevents it from being loaded in this way.

Firefox prevented this page from loading in this way because the page has a content security policy that disallows it." at the address: about:accounts?action=signin&entrypoint=preferences

what other ways are availabe to sync?

Greetings team, have started getting pop-up messages from Youtube about the adblocker that I have on my Firefopx browser. Deleted my cookies and then that stopped for a few days, but then it again comes on. Please advise a proper solution, as I am very disinclined to pay for Ad-free service on youtube uploads.

Thanks, Brojo.