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Why won't Mozilla Firefox open up when I click it?

Firefox
cor-el replied
cupck8d
cupck8d

When I go to open up a browsing session on Firefox, the icon gets dark like it's opening, but then goes back to normal and nothing comes up.

When I go to open up a browsing session on Firefox, the icon gets dark like it's opening, but then goes back to normal and nothing comes up.

All Replies (1)

cor-el
cor-el
  • Moderator

See:

A possible cause is security software (firewall,anti-virus) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.

See: