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

Èròjà atẹ̀lélànà yii ni a ti fi pamọ́ fọ́jọ́ pípẹ́. Jọ̀wọ́ béèrè ìbéèrè titun bí o bá nílò ìrànwọ́.

Firefoxsometimes takes awhile to close. Periodically have to end process via task manager. 'Any ideas?

  • 1 èsì
  • 1 ní ìṣòro yìí
  • 16 views
  • Èsì tí ó kẹ́hìn lọ́wọ́ Hasan

more options

I close Firefox. It immediately closes and disappears from the task bar. At times, if I try to open it within 5 or 10 seconds after, it will display a message that '....Firefox is already running......' and will not launch Firefox until waiting for a few more seconds. In the last couple days, it has appeared to be closed when I close it (same scenario as above). But it is saying it is still open for an extended period of time - 30+ seconds. So I go into task manager and end the process. Then it will launch.

I close Firefox. It immediately closes and disappears from the task bar. At times, if I try to open it within 5 or 10 seconds after, it will display a message that '....Firefox is already running......' and will not launch Firefox until waiting for a few more seconds. In the last couple days, it has appeared to be closed when I close it (same scenario as above). But it is saying it is still open for an extended period of time - 30+ seconds. So I go into task manager and end the process. Then it will launch.

All Replies (1)

more options

-> Tap ALT key or press F10 to show the Menu Bar

-> go to Help Menu -> select Restart with Add-ons Disabled

Firefox will close then it will open up with just basic Firefox. Now do this:

-> Update ALL your Firefox Plug-ins https://www.mozilla.com/en-US/plugincheck/

-> go to View Menu -> Toolbars -> Menu Bar and Navigation ToolBar -> unselect All Unwanted/Incompatible Toolbars

-> go to Tools Menu -> Clear Recent History -> Time range to clear: select "EVERYTHING" -> click Details (small arrow) button -> place Checkmarks on Cookies, Cache -> click Clear Now

-> go to Tools Menu -> Options -> Content -> place Checkmarks on:

1) Block Pop-up windows 2) Load images automatically 3) Enable JavaScript

-> go to Tools Menu -> Options -> Security -> place Checkmarks on:

1) Warn me when sites try to install add-ons 2) Block reported attack sites 3) Block reported web forgeries 4) Remember Passwords for sites

-> go to Tools Menu -> Options -> Advanced -> Network -> Offline Storage (Cache): click Clear Now button

-> Click OK on Options window

-> click the Favicon on SearchBar -> click Manage Search Engines -> select all Unwanted Search Engines and click Remove -> click OK

-> go to Tools Menu -> Add-ons -> Extensions section -> REMOVE All Unwanted/Suspicious/Incompatible Extensions (Add-ons) -> Restart Firefox

-> go to Tools Menu -> Add-ons -> Appearance section -> REMOVE All Unwanted/Suspicious/Incompatible Themes (Persona) -> Restart Firefox

You can enable your Known & Trustworthy Add-ons and Themes later. Check and tell if its working.