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!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

How to stop Firefox from opening previously closed tab after shutdown?

  • 1 reply
  • 10 have this problem
  • 11 views
  • Last reply by guigs

more options

I have had an issue where Firefox will open a tab from a previous session after I have closed it. I have restore previous session enabled, but do not think it applies to the tabs I closed already. This is an inconvenience, because, there are tabs I don't want my significant other to see I have been searching(surprise gifts, etc).

I have had an issue where Firefox will open a tab from a previous session after I have closed it. I have restore previous session enabled, but do not think it applies to the tabs I closed already. This is an inconvenience, because, there are tabs I don't want my significant other to see I have been searching(surprise gifts, etc).

All Replies (1)

more options

You can remove history on shut down or remove them individually if you did not use a private tab to see those tabs you would like to hide.

Another way to disable tabs undo is through the about:config. Please remember to change to change it back later ;-)

Ravi has a nice demonstration here: https://www.youtube.com/watch?v=HZSITpo4Bqo