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when i try to install adobe flash player plugin a message pops up" only a single instance of this application can run" what should i do?

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  • Last reply by cor-el

sheilacolson
sheilacolson
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when i try to install adobe flash player plugin a message pops up "only a single instance of this application can run" what should i do?

when i try to install adobe flash player plugin a message pops up "only a single instance of this application can run" what should i do?

All Replies (1)

cor-el
cor-el
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Make sure that Firefox is closed and check in the Task manager that there are no hanging plugin-container processes left.