This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

weird bug or my firefox got hacked?

  • 3 fhreagra
  • 1 leis an bhfadhb seo
  • 1 view
  • Freagra is déanaí ó cor-el

Aleksey
Aleksey
more options

A week ago installed fresh win 10, downloaded Firefox, logged in my firefox account. got my bookmarks, password and other good stuff synced in and at some point i recognized that my Youtube dosen't work right(issue exist only in Firefox, only on 1 PC)so here is a deal: I log in my google accout, open youtube page, it shows my subscriptions, recomended, playlist and other stuff except notifications, and if i like a video it dosen't add to "liked videos" playlist, in fact i can't manage any playlists at all and if i update a page it shows that i'm no longer loged in and i can't log out ither because page dosen't look like it should(simply not showing UI for account managment, only "dark theme","language" and other crap related to page) in Opera and even Edge everything works like intended. I used win. defender and other anti-virus soft to scan my PC - found nothing, there is no addons or anything like that, i completly removed evrything Mozila related and instaled it back - dosen't fix anything.

A week ago installed fresh win 10, downloaded Firefox, logged in my firefox account. got my bookmarks, password and other good stuff synced in and at some point i recognized that my Youtube dosen't work right(issue exist only in Firefox, only on 1 PC)so here is a deal: I log in my google accout, open youtube page, it shows my subscriptions, recomended, playlist and other stuff except notifications, and if i like a video it dosen't add to "liked videos" playlist, in fact i can't manage any playlists at all and if i update a page it shows that i'm no longer loged in and i can't log out ither because page dosen't look like it should(simply not showing UI for account managment, only "dark theme","language" and other crap related to page) in Opera and even Edge everything works like intended. I used win. defender and other anti-virus soft to scan my PC - found nothing, there is no addons or anything like that, i completly removed evrything Mozila related and instaled it back - dosen't fix anything.

All Replies (3)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

The issue(s) you describe can be caused by corrupted cookies or blocked cookies.

  • check the permissions for the domain in the currently selected tab in "Tools -> Page Info -> Permissions"

You can try these steps in case of issues with web pages:

You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.

  • hold down the Shift key and left-click the Reload button
  • press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
  • press "Command + Shift + R" (Mac)

Clear the Cache and remove the Cookies for websites that cause problems via the "3-bar" Firefox menu button (Options/Preferences).

"Remove the Cookies" for websites that cause problems:

  • Options/Preferences -> Privacy & Security
    Cookies and Site Data: "Manage Data"

"Clear the Cache":

  • Options/Preferences -> Privacy & Security
    Cookies and Site Data -> Clear Data -> Cached Web Content: Clear

Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or userChrome.css is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Safe Mode start window
Aleksey
Aleksey Úinéir na ceiste
more options

Didn't work for me Still got same thing: "405. That’s an error. The request method GET is inappropriate for the URL /youtubei/v1/guide. That’s all we know. "

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Try to set the Shockwave Flash plugin to "Never Activate" via "Add-ons -> Plugins" (about:addons).