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

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metadatr
metadatr
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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.

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Hasan
Hasan
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-> 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.