Diễn đàn hỗ trợ Firefox

When I try to use Publisher's Clearing House games on an ACER Chromebook 315 the screen locks up at "please rotate your device" it is a laptop so of course I am not going to rotate it!!

I recently switched from Linux to Windows and installed Firefox on my new system. I signed in with the same Firefox Account that I had used on Linux, but none of my bookmarks, shortcuts, or other data have synced. It feels like a fresh Firefox setup. Here’s what I’ve tried so far: 1. Confirmed that I signed in with the same Firefox Account. 2. Verified that Sync is enabled for bookmarks, history, and other items on Windows. 3. Triggered manual sync multiple times, but nothing has appeared. Is there any way to check if my bookmarks were stored on the Firefox servers, and if so, how can I retrieve them?

(sorry for my bad English) I delete and again install Firefox, and after this if I open tabs (Youtube, etc) and close browser, tabs doesn't restore and showing default 1 search tab Firefox. Setting to restore tabs enabled, but not working, lile a method with about:setting. I will be grateful for help.

Virusscanner warning supposedly from "Mozilla Firefox" On my laptop I get these fake warnings (see attachment). Every time Firefox is opened they appear. The virus scanner says there are no virussen. How do I get rid of this?