Also disable any plugins or addons you aren’t using. Some of these can suck the life out of firefox.
https://support.mozilla.org/en-US/kb/disable-or-remove-add-ons
Update to latest version of Firefox. Also, run SuperAntiSpyware or MalwareBytes to clear out other junk running on your computer.
Use Explorer.
carriage_hill recommended Opera and I would recommend Pale Moon. Either one can quickly installed and tested, and then removed if you don’t like them. I found Pale Moon attractive to me needs because it is a FF clone.
/sigh
There, now we can get on with the real solution.
Is your desktop cluttered with folders full of stuff? Move those to your C: hard drive and you should notice a difference.
I use PaleMoon and never going back to FF or Chrome. Stable, fast, not bloatware like FF and uses same addons as FF. Private Window feature is great.
Pale Moon is an Open Source, Firefox-based web browser available for Microsoft Windows, Android and Linux (with other operating systems in development), focusing on efficiency and ease of use.
All browsers can get this way the longer you use them. As others have said, first turn off or remove as many add-ons (Extensions) as you can. A malicious one could have snuck its way in there.
Then look over your installed search engines (Options —> Search) and get rid of everything except Google, Yahoo, and Bing.
Clearing browser cache can’t hurt either. Those 3 steps should solve most browser issues.
Often the culprit is the evil program Adobe Flash, which borders on a virus in my opinion. Apart from the eternal Flash crash, a lot of sites now are running adware videos in the background which utilize Adobe Flash. Our IT guys says these ads can eat up all your capacity and then your system freezes and crashes.
Conservatives don’t use the anti-Christian Firefox browser.
I used Firefox for a long time, then switched over to Pale Moon. Both of those crashed maybe 4-5 times a day. Based on what FReepers had to say, I loaded Opera and it’s been great — I don’t think it’s crashed once since I loaded it.
Clear cached browser files and optimize your hard drive.
Then —
Installing a hosts file (a simple text file that acts as web blocking filter) will block any browser from loading pages from thousands of adware and malware sites. Besides security, by blocking that stuff, the filter speeds up your browser considerably. It works for Windows, OSX and Linux. I have used it for years.
Learn more and download the file from:
http://winhelp2002.mvps.org/hosts.htm