How to check if Mozilla Firefox works correctly?

[luffy]

Hi, I believe that my Mozilla Firefox is loading slow for some unknown reason. Do you know how I can check what make it slower? like Java script changing?
Thank you.

[Raymond]

Can you be more specific on Firefox is loading slow? Do you mean loading websites?
I never had any problems in loading websites, only slow during launching Firefox due too a huge list of history.

[luffy]

It's slow when I go to here http://www.facebook.com/

[hellnoire]

Odd, my Firefox installs, on Linux and Windows, both are fast with Facebook once loaded. Try doing a reinstall, or clear your cache/cookies, by going to Tools>Clear Recent History (3.5.X) or Tools>Clear Private Data (3.0.X and before)

[Avinash]

If your mozilla firefox is loaded with lots of addons then its natural. I have around 20 addons in it and it takes round about 8-10 seconds to laod.