This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Since I installed FF 18.0 (win XP) when i run it it my whole system "jumps" and pauses. If I don't run FF18 all is good.

more options

everything slows down when FF18 is running. If i close FF18 all is good with all my other programs. It's as if I was running Win XP on a 486!

And yes - i've disabled every add on.

everything slows down when FF18 is running. If i close FF18 all is good with all my other programs. It's as if I was running Win XP on a 486! And yes - i've disabled every add on.

All Replies (1)

more options

So when I start in Safe Mode it works fine. But I have none of my favourite bookmarks tools bar etc. Where do I start to look? Thanks g