Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Sykje yn Support

Mij stipescams. Wy sille jo nea freegje in telefoannûmer te beljen, der in sms nei ta te stjoeren of persoanlike gegevens te dielen. Meld fertochte aktiviteit mei de opsje ‘Misbrûk melde’.

Learn More

Dizze konversaasje is argivearre. Stel in nije fraach as jo help nedich hawwe.

Firefox will not start. I fresh installed. Tried opening with adminstrative status.

  • 1 antwurd
  • 1 hat dit probleem
  • 1 werjefte
  • Lêste antwurd fan FredMcD

more options

Yesterday I added Kaspersky antivirus. Now I can't start Firefox or Chrome. I'm having to use Microsoft Edge. I uninstalled Firefox and fresh installed. I disabled Kaspersky and tried to start Firefox. I am running Windows 10 on a new Asus laptop. My daughter has a new laptop running Windows 10 and Kaspersky and she's not having a problem. I can't click on the "Automatically add" link because I'm in Edge. I can't start Firefox.

Yesterday I added Kaspersky antivirus. Now I can't start Firefox or Chrome. I'm having to use Microsoft Edge. I uninstalled Firefox and fresh installed. I disabled Kaspersky and tried to start Firefox. I am running Windows 10 on a new Asus laptop. My daughter has a new laptop running Windows 10 and Kaspersky and she's not having a problem. I can't click on the "Automatically add" link because I'm in Edge. I can't start Firefox.

Alle antwurden (1)

more options

As a test, disable Kaspersky.

Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac Options)
key, and then starting Firefox. Is the problem still there?