Does this also happen if you wait a few minutes after booting before starting Firefox?

It is possible that the internet connection hasn't been set up.

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

See "Creating a profile":

• https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles
• http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues

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

• http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

Hi Corel,

Yes I tried launching FF a few mins after booting finished and still same problem.

Thanks for your suggestion but I still have same problem,

Did you try the new profile?

yeah I did, it was a little different since after around 5 minutes FF did become responsive, but only for a min or so.

Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen) as a test to see if this helps.

• http://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/

yeah I've tried that with the same results

You can try to disable hardware acceleration in Firefox (you need to close and restart Firefox).

• Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

This occurs viewing the built-in Firefox home page and no other sites?

To rule out Flash as a potential culprit, could you try one or both of the following:

(1) Disable the Protected Mode feature of the Flash Player plugin.

The following pages provide different ways to do that:

• Adobe support article under the heading "Last Resort": Adobe Forums: How do I troubleshoot Flash Player's protected mode for Firefox?

• Manual steps: https://support.mozilla.org/questions/968190?page=5#answer-509209

• Batch file to automate the manual steps: https://support.mozilla.org/questions/982093#answer-518078

Flash needs to completely unload from memory (restarting Firefox might help) before this would take effect.

(2) Set Flash to Click-to-Play ("Ask to Activate").

This will delay Flash from starting on a page until you approve it, which will help distinguish Flash-generated issues from page load and layout issues.

To set "Ask to Activate", open the Add-ons page using either:

• Ctrl+Shift+a
• orange Firefox button (or Tools menu) > Add-ons

In the left column, click Plugins. Look for "Shockwave Flash" and change "Always Activate" to "Ask to Activate".

When you visit a site that wants to use the Flash, you should see a notification icon in the address bar and one of the following: a link in a black rectangle in the page or an infobar sliding down between the toolbar area and the page.

Any improvement in these scenarios?

Thanks both for your suggestions!

My firefox would freeze even on the home page, but I tried jscher's suggestion. I first uninstalled flash and see if it solved the problem and it did, and now I made it so that flash only activates when asked to... I tried with a video and after reboot FF still worked.

Thanks for your help!