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

Flash Plugin for Firefox will not work, tried all recommended fixes

  • 4 ŋuɖoɖowo
  • 1 masɔmasɔ sia le esi
  • 13 views
  • Nuɖoɖo mlɔetɔ snowdog101

more options

Tried all the recommended fixes: completely uninstalling Flash, updating it to current version, disabling hardware acceleration. The only "fix" that works is either completely disabling the addon in Firefox or setting it to ask to be used. Even going to Adobe's website to check to see if flash is working causes the plugin to repeatedly fail and lock up Firefox.

Tried all the recommended fixes: completely uninstalling Flash, updating it to current version, disabling hardware acceleration. The only "fix" that works is either completely disabling the addon in Firefox or setting it to ask to be used. Even going to Adobe's website to check to see if flash is working causes the plugin to repeatedly fail and lock up Firefox.

All Replies (4)

more options

Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac=Options)
key, and then starting Firefox. A small dialog should appear. Click Start In Safe Mode (not Refresh).

Is the problem still there?


Start your Computer in safe mode with networking. Then start Firefox. Try Safe websites. Is the problem still there?

Starting The Computer In Safe Mode;
Free Online Encyclopedia

more options

Yep, the second I enable the addon for flash and go to a website with flash running, it locks up and spams "Unresponsive Plugin, do you want to disable" message over and over.

more options

Is that any site?

This is not a cure but should let the web page load without crashing.

Flash block {web link} Never be annoyed by a Flash animation again! Blocks Flash so it won't get in your way, but if you want to see it, just click on it


Did you have a problem with Firefox or the computer in safe mode?


See if there are updates for your graphics drivers https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

more options

Any website that I clicked "Allow" so that flash would work causes Firefox to become unresponsive. I want to figure out why this started happening and how to fix it in the future. Simply having it set to Always ask or blocking it entirely is not what I'm after.