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Windows 10 updated itself on laptop, now unable to open Firefox browser. msg says Firefox is open, close option does nothing. How can I clear this please?

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  • Last reply by FredMcD

JaneP1tt
JaneP1tt
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Hi, since Windows 10 updated itself on my HP laptop my default browser Firefox won't open, a small window pops up saying Firefox is already open & I must close it...I click on the 'close' button but it does nothing,. How can I clear it? Thanks

Hi, since Windows 10 updated itself on my HP laptop my default browser Firefox won't open, a small window pops up saying Firefox is already open & I must close it...I click on the 'close' button but it does nothing,. How can I clear it? Thanks

All Replies (1)

FredMcD
FredMcD
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Some problems occur when your Internet security program was set to trust the previous version of Firefox, but no longer recognizes your updated version as trusted. Now how to fix the problem: To allow Firefox to connect to the Internet again;

  • Make sure your Internet security software is up-to-date (i.e. you are running the latest version).
  • Remove Firefox from your program's list of trusted or recognized programs. For detailed instructions, see

Configure firewalls so that Firefox can access the Internet. {web link}