Join the Mozilla’s Test Days event from 9–15 Jan to test the new Firefox address bar on Firefox Beta 135 and get a chance to win Mozilla swag vouchers! 🎁

Sök i support

Akta dig för supportbedrägerier: Vi kommer aldrig att be dig att ringa eller skicka ett sms till ett telefonnummer eller dela personlig information. Rapportera misstänkt aktivitet med alternativet "Rapportera missbruk".

Läs mer

Tabs on a web site not working

  • 2 svar
  • 4 har detta problem
  • 1 visning
  • Senaste svar av cor-el

more options

After some time using the web site below (unfortunately it is password protected, but I can send/post a screen recording if required) it is not any longer possible to use it's "Internal Tabs". It works again if I reset Firefox to its default values.

Kent Eriksson

After some time using the web site below (unfortunately it is password protected, but I can send/post a screen recording if required) it is not any longer possible to use it's "Internal Tabs". It works again if I reset Firefox to its default values. Kent Eriksson

Alla svar (2)

more options

This is not a reply, I add a screen shot to provide more information. It is the "tabs" below the video window (About this lesson, Supplement Content....) that stops working.

more options

Try to reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.

  • Press and hold Shift and left-click the Reload button.
  • Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
  • Press "Cmd + Shift + R" (MAC)

Clear the cache and the cookies from sites that cause problems.

"Clear the Cache":

  • Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"

"Remove Cookies" from sites causing problems:

  • Tools > Options > Privacy > Cookies: "Show Cookies"

See also:


Start Firefox in Safe Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance/Themes).