Why is Firefox so slow and heavy?

-1

For some reason, when I go to links the pages seem slow and heavy. It also has a lot of lag spikes between page loads. Basically it seems to freeze then load it all at once fast.

I'm currently using Firefox 25.

But when I use the same Chrome version, it seems to be very fast and smooth page loading.

The CPU it takes on average is about 400,000k.

Extensions:

iMacros
Leethax
Ad Block Plus 2.4
Ad Block Plus Pop-up Addon 0.9.1

Computer stats:

6 GB RAM
Windows 7 Acer Aspire Laptop
500 GB HDD
Intel Core i3-2370M

How do I make Firefox load like Google Chrome, without much freezing?

puretppc

Posted 2013-11-07T01:23:13.583

Reputation: 265

Also, there is no i4 processor – Canadian Luke – 2013-11-07T15:13:42.283

@CanadianLuke i3 my bad. – puretppc – 2013-11-07T15:15:36.547

Try disabling all your extensions and try it again. – Mokubai – 2013-11-08T07:04:46.610

Answers

Try starting Firefox in Safe Mode. This explains.

If it works fine in Safe Mode, your extensions are at fault.

After some cursory searching and learing that Leethax is a game cheating tool, I'd surmise you are playing a lot of Flash games in your browser.

if you have 10 tabs of Flash-heavy games open, of course things will be slow. Make sure your Flash plugin is updated to the latest version. Since Chrome integrates Flash it may have an inherent speed advantage here.

If the extension itself is causing the slowness, there isn't much you can do if you aren't the developer.

LawrenceC

Posted 2013-11-07T01:23:13.583

Reputation: 63 487

All recent Firefox have plugins in another process - and it is usually faster than Chrome in recent versions. – NoBugs – 2014-02-15T02:38:42.103