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.

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

Firefox 29 is very much slower than 28 in Ubuntu 14.04 or OpenSUSE Tumbleweed, but enough fluent in Win7 same computer

  • 1 phendula
  • 45 inale ngxaki
  • 4 views
  • Impendulo yokugqibela ngu cor-el

more options

I kept the session contains 500+ tabs in Firefox 28. I updated firefox from 28 to 29 in 64bit Ubuntu 14.04/64bit OpenSUSE Tumbleweed/32bit Windows 7 in the same computer (I installed 3 operation systems in it loaded by Grub 2).

But only firefox 29 in Windows 7 is enough fluent. Firefox 29 in Linux are very very much slower than firefox 28. I even can't close tabs, almostly. So I think firefox 29 is not good optimized for Linux.

I tested this in a desktop computer (AMD Althon 5000+, 4G RAM, ATI 3850 512MB VideoCard, and 1TB Seagate HDD), and a laptop computer (i3 2.53GHz, 4G RAM, 128GB SSD).

I kept the session contains 500+ tabs in Firefox 28. I updated firefox from 28 to 29 in 64bit Ubuntu 14.04/64bit OpenSUSE Tumbleweed/32bit Windows 7 in the same computer (I installed 3 operation systems in it loaded by Grub 2). But only firefox 29 in Windows 7 is enough fluent. Firefox 29 in Linux are very very much slower than firefox 28. I even can't close tabs, almostly. So I think firefox 29 is not good optimized for Linux. I tested this in a desktop computer (AMD Althon 5000+, 4G RAM, ATI 3850 512MB VideoCard, and 1TB Seagate HDD), and a laptop computer (i3 2.53GHz, 4G RAM, 128GB SSD).

All Replies (1)

more options

Create a new profile as a test to check if your current profile is causing the problem.

See "Creating a profile":

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over the problem


There might be extensions and plugins installed by default in a new profile, so check "Firefox/Tools > Add-ons > Extensions & Plugins" in case there are still problems.