Join the Mozilla’s Test Days event from Dec 2–8 to test the new Firefox address bar on Firefox Beta 134 and get a chance to win Mozilla swag vouchers! 🎁

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

Tab bar sometimes scrolls to the left when hovering over, make it stop.

  • 1 reply
  • 0 have this problem
  • Last reply by cor-el

more options

Have way too many tabs open 20- 30. On tab 27. (near the right end of the tab bar) Move mouse to switch tabs. Before the preview thumbnail appears the tab bar scrolls to the left, selects a random tab and changes focus to that tab.

example. Have a bunch of tabs open looking for a new vacuum cleaner, makers web sites and views. Get a call from my mother-in law, problem with her computer. Have bunch of pages open, stackoverflow, reddit etc. Find a solution that looks similar to a page on a previous tab. Move mouse over a tab and before the preview thumbnail appears the tab bar scroll to the left changes focus to a vacuum cleans manufacture page.

Its not jumping to a duplicate of a page. I have no idea if its jumping back 10 tabs or 15 tabs. It never jumps to the first tab. I don't have my hands on the keyboard. Not touching the mouse scroll wheel.

Help!!!!

Have way too many tabs open 20- 30. On tab 27. (near the right end of the tab bar) Move mouse to switch tabs. Before the preview thumbnail appears the tab bar scrolls to the left, selects a random tab and changes focus to that tab. example. Have a bunch of tabs open looking for a new vacuum cleaner, makers web sites and views. Get a call from my mother-in law, problem with her computer. Have bunch of pages open, stackoverflow, reddit etc. Find a solution that looks similar to a page on a previous tab. Move mouse over a tab and before the preview thumbnail appears the tab bar scroll to the left changes focus to a vacuum cleans manufacture page. Its not jumping to a duplicate of a page. I have no idea if its jumping back 10 tabs or 15 tabs. It never jumps to the first tab. I don't have my hands on the keyboard. Not touching the mouse scroll wheel. Help!!!!

All Replies (1)

more options

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

  • switch to the Default System theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click "Refresh Firefox" in the Troubleshoot Mode start window

Helpful?

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.