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

Firefox is sl SLOW

  • 8 replies
  • 1 has this problem
  • 31 views
  • Last reply by FredMcD

more options

Firefox slowly loads, home page take too long to load- I can bring up chrome and manually log in and switch back firefox is still "loading site. Safe mode works great - very fast, disable antivirus-no change , re-installed Firefox with NO add ons or ext. still slow !! any suggestions, Chrome/ MS Edge work fast on same machine.

Firefox slowly loads, home page take too long to load- I can bring up chrome and manually log in and switch back firefox is still "loading site. Safe mode works great - very fast, disable antivirus-no change , re-installed Firefox with NO add ons or ext. still slow !! any suggestions, Chrome/ MS Edge work fast on same machine.

All Replies (8)

more options

snic221712 said

Safe mode works great

It could be the work of one of your add-ons, or it could be Hardware Acceleration. How to disable Hardware Acceleration {web link}

more options

Is this about Firefox Troubleshoot Mode or about booting Windows in Safe Mose ?

Boot the computer in Windows Safe Mode with network support to see if that has effect.

more options

In safe mode its very fast - in the working environment this is the only slow browser. How do I narrow down the conflict ? OR re-install without any previous settings or book marks ?? This just happened one day about 2 months ago

more options

What addons do you have?

more options

snic221712 said

In safe mode its very fast

Did you mean Firefox Safe Mode?

It could be the work of one of your add-ons, or it could be Hardware Acceleration. How to disable Hardware Acceleration {web link}

Type about:addons<enter> in the address bar to open your Add-ons Manager. Hot key; <Control> (Mac=<Command>) <Shift> A)

In the Add-ons Manager, on the left, select Extensions. Disable a few add-ons, then Restart Firefox.

Some added toolbar and anti-virus add-ons are known to cause Firefox issues. Disable All Of them.

If the problem continues, disable some more (restarting FF). Continue until the problem is gone. After, you know what group is causing the issue. Re-enable the last group ONE AT A TIME (restarting FF) until the problem returns.

Once you think you found the problem, disable that and re-enable all the others, then restart again. Let us know who the suspect is, detective.

more options

Thanks you had am boot Win 10 in safe mode I already uninstalled and re-installed most current firefox with NO Ext or Add ONs Firefox safe mode is fast Win 10 Safe mode is Fast Disabling antivirus made no difference

Next would be boot mode and chose selective disable programs on boot path ???

more options

I have a fresh install with NO add ons or EXT's

more options