firefox crashes

Playing live chess on my mac.  Firefox crashes during the game.  Has happened three times in two days.  Anyone else?

Have any plugins on firefox? Have you tried clearing out your browsing data?

Make sure you have the latest version of FF, also.

Yes I have many plugins.  jac1yn, why would that be a problem?  Otherwise browsing data is regularily cleared, and Firefox is up to date. 

One of the plugins may be causing the problem.  You might try disabling all of your plugins and enabling them one by one to see which is causing the issue. 

Happens to me all the time.  Chrome doesn't crash, but is very laggy.

I agree with jac1yn on the plugins.

In particular they're called "Extensions". If you're not sure what an extension is doing, perhaps you also accidentally installed some of them that came bundled with an installer for one of your other programs, you can disable them here for testing and you can always re-enable them later to find the culprit.

See below (just type "about:addons" into the address bar and it will take you right there):

In my case, I've had extremely choppy movements in live chess with Wappalyzer. Although I've fixed that in its settings. The thing was that in live chess there's a bunch of onLoad() events executed after every move. Analyzing plugins can and will typically hook into that and do a ton of processing - which will totally bog down live chess. Even on a high end machine.

To update it suffices to just go to "Help" > "About Firefox", and it will check if Firefox is up to date and download the newest version if it's not. At least on Windows.

Hope this helps. :)

Firefox used to crash a lot on me for no good reason, therefore I switched to Chromium, also an open-source browser. Chromium is basically Chrome but without the Google branding. It serves as basis for it's developpement as well as for the Opera browser. The stable builds of Chromium are fully tested by developpers and are ready to use by the mainstream.

It's easy to install and enjoy on Linux & Mac, you can get it here with updates and Pepper Flash included! http://www.freesmug.org/chromium

@eehc Thx will try it out