Install Firefox 4 on Fedora 14, Fedora 13/12 – Screenshots

Mozilla Firefox 4 is released and this is guide, howto install Firefox 4 smoothly on Fedora 14, Fedora 13 and Fedora 12 using YUM. It’s important to take backups of all Firefox profiles before install, because this major version upgrade and can behave in any unpredictable way.

What’s new in Firefox 4

  • New HTML5 parser
  • Support for more HTML5 form controls
  • Native support for the HD HTML5 WebM video format
  • Crash protection – when there is a crash in the Adobe Flash, Apple Quicktime or Microsoft Silverlight plugins
  • Web developers can animate content using CSS Transitions
  • New Addons Manager and extension management API
  • Full WebGL support – is included but disabled by default at this time

Read full details from Firefox 4 release notes.

Install Mozilla Firefox 4 on Fedora 14, Fedora 13 and Fedora 12

1. Backup your current Firefox 3 profiles

2. Change root user

3. Install Remi repository

4. Check Available Firefox 4 versions


5. Install Mozilla Firefox 4


6. Start Firefox 4

Then start Firefox with FF4 profile using command:

Use Firefox 4 launcher

Firefox 4 Launcher on Gnome Desktop
Note: If you use separated profile for Firefox 4 then modify launcher too

Firefox 4 Screenshots

Firefox 4 running on Fedora 13

Firefox 4 Running on Fedora 13 Screenshot

Firefox 4 Acid3 test 97/100

Firefox 4 Acid3 Test Screenshot

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  1. Hey, JR ~~

    Thanks a bunch for this write up. I actually just used it to install FireFox v5 — yum picked it up automatically. All was easy to follow (i.e. copy & paste!) and worked without a hiccup.

    Good Stuff !!!

  2. Thank you a lot,

    I know this is a old thread but i got firefox firefox-8.0-1 on Fedora 12 :)

    Still have to figure out is it possible to just upgrade fedora to last stable version or I have to make clean new install and delete all stuff I have on it ? :/

    Best Regards,

    • You are welcome!

      Yes, very old thread :)

      Upgrading from Fedora 12 to Fedora 19 is possible, but you need to find old repos, because safest method is upgrade F12 -> F13, F13 -> F14 and so on. So easiest and best way is backup your all important files and do fresh install, then simply restore your old files.


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