FireFox Bad Request Error

Here is the link showing how to fix this problem:
http://timourrashed.com/how-to-fix-the-400-bad-request-error-message-from-a-website/

FireFox 18.0.1 stops working

First posted on Feb 2, 2013
I am not able to start FireFox after installing the latest version of Nvidia driver.  I can start in safe mode.  It is strange that I can start the winPenPack version of the X-FireFox (18.0.1).

I have tried to disalbe all the add-ons and plugins, this didn't work.

Solution
After I do a "clean" installation of an older version (301.42) of the video driver, finally, I can start FireFox again.

Update:
I forgot this problem and upgrade to 314.22, the problem is back...

New Solution
In safe mode, go to  Options, Advanced, General and uncheck the "Use hardware acceleration when possible."

Debug Javascript in FireFox with Firebug

• Go to the web page you would like to debug
• Open Firebug from Tools, Web Developer, Firebug, Open Firebug
• Click the "Script" tab
• Click the Reload link
• Set the breakpoints...

Changing Text Size in Browser

Suddenly the text on YouTube became very small in my FireFox borwser... press <Ctrl> and the "+" to change the size of the text.  It also works in Chrome and IE.

Open a new tab when a link is clicked in Chrome and FireFox

Not focused:

• <Ctrl> + click
• <middle button> + click

Focused:

• <Ctrl> + <Shift> + click
• <middle button> + <Shift> + click