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Firefox will not open on my laptop

  • 3 replies
  • 1 has this problem
  • 2 views
  • Last reply by James

CoachMerli
CoachMerli
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Firefox will not open on my laptop. The tab opens but the homepage does not appear even after waiting 5 minutes. I've run all my updates to my Dell Laptop. I am fortunate to have it on my phone. I am a perpetual monthly subscrber.

Firefox will not open on my laptop. The tab opens but the homepage does not appear even after waiting 5 minutes. I've run all my updates to my Dell Laptop. I am fortunate to have it on my phone. I am a perpetual monthly subscrber.

All Replies (3)

FredMcD
FredMcD
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jscher2000 said
Could this be relevant? A couple of other users identified Webroot (security software) as blocking 64-bit Firefox 97 -- released today -- from running properly: If you are still running an earlier release of Firefox, this would not be your issue.

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}

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
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If you have Windows 10 or 11, and Webroot security software, and 64-bit Firefox 97, there is an incompatibility which cripples Firefox.

People are working with Webroot to issue an update.

Until then, a user posted that one workaround is to run Firefox 97 in backwards compatibility mode. I haven't tested this myself, but here is how you would set that up:

(1) Open the Properties dialog for your Firefox shortcut. Either:

  • right-click a Desktop shortcut, then click Properties
  • right-click a pinned Taskbar icon, then right-click the Firefox (or Mozilla Firefox) item, then click Properties

(2) Switch to the Compatibility tab

(3) Check the box for "Run this program in compatibility mode for"

(4) If the selector for that option is not set on Windows 8, switch it to Windows 8

As a result of this change, you may notice that some Windows 10-specific features and styling are disabled. However, I am not aware of any major changes. If you experiment with this, let us know your experience.

James
James
  • Top 25 Contributor
  • Moderator
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In case you do have Webroot.

https://www.mozilla.org/firefox/97.0.1/releasenotes/

Fixed Works around problems with WebRoot SecureAnywhere antivirus rendering Firefox unusable in some situations