The most likely fix: replace it.
And, sorry, I don't have any suggestions on making Firefox startup faster.
I have Windows XP Professional edition; 512 mb; hard drive is about 3 years old; video card about 4 years old. I use DSL though local phone company.
Recently Firefox is taking a while to load. I've tried disabling extensions and add-ons. I run AVG weekly, CleanUp, Malwarebytes and Advanced Systemcare.
Also, my CD burner won't burn CD's anymore. This has been a problem for a while, so just gave up on it, but if anyone knows the fix for this that would be great!