[smokingfrog]

clear your web cache

restart

[Viennacon]

Drop Firefox.

[UncleHambone]

[UncleHambone]

But seriously, does IE or Chrome behave similarly?

Also, to troubleshoot you might want to try FF in safe mode to see if it is an add-on that is troubling you. At the top of the Firefox window, click the Help menu and select Restart with Add-ons Disabled.... Firefox will start up with the Firefox Safe Mode dialog.

[GeronL]

try clearing the cache and turning off some of the add-ons.

Then download the Pale Moon browser

[null and void]

Unless you have a Mac, try migrating to PaleMoon. Same user interface, much more compact, runs faster, and is politically neutral.

[Libloather]

[Rio]

I recently switched to Pale Moon. It is like Firefox back when it actually worked.

[DManA]

How could you not have gotten the message about FireFox?

[al_c]

Install the Pale Moon browser and then delete Firefox.

[blueplum]

call verizon have them run a test on your line. We had squirrels get in the wiring box up on the pole, chewing on insulation. Slowed things considerably

[BreezyDog]

Flash is usually the culprit.

[demshateGod]

Get Pale Moon, use the transfer utility, and you won't miss Firefox a bit.

[matthew fuller]

Thanks for this post.

[5th MEB]

Yeah; DUMP Firefox.

[RBStealth]

Do you run the add on ‘NoScript’, AdBlock and there are some others that as add on’s cause problems with some peoples machines and not others. Personally , I have been having this problem lately, “NoScript” was my problem.

Disable all your addons, if this fixes your molasses problem. Then turn on each add on one at a time and figure out your culprit.

In addition viruses, malware can also cause this.

[TChad]

Use something like ccleaner to clean your temporary files, make sure your Flash and other plugins are up to date at http://www.mozilla.org/en-US/plugincheck/, and yes, try switching to Pale Moon or one of the other browsers built on the open-source Mozilla code that underlies Firefox.

If your problems are Flash related, you might have better luck with one of the Chromium-based browsers.

[P-Marlowe]

Delete it.

[jjsheridan5]

I had the same problem. Tried everything mentioned above (and a lot of other things), and nothing worked. Eventually, I came upon this:

Firefox unbearably slow

Look for the "Potentially Important Work around" section, which turns off the tab throbber.

[elhombrelibre]

I dropped Firefox. I went back to Windows Explorer. It’s more compatible with Adobe and other things that are so much a part of the webpages now. I’ve no regrets.