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!

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

I want to permanently unpin and remove a tab, but the pinned tab keeps opening whenever I restart Firefox.

  • 3 replies
  • 3 have this problem
  • 1 view
  • Last reply by cor-el

zxxholly
zxxholly
more options

I accidentally pinned a tab. Now every time I open Firefox it is there, even if I unpin and close, or just close the tab and restart the browser.

I accidentally pinned a tab. Now every time I open Firefox it is there, even if I unpin and close, or just close the tab and restart the browser.

Chosen solution

Changes made manually on the about:newtab page are stored in the browser.newtabpage.pinned (default = [null]) and browser.newtabpage.blocked prefs that you can check/modify on the about:config page

Read this answer in context 👍 5

All Replies (3)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Chosen Solution

Changes made manually on the about:newtab page are stored in the browser.newtabpage.pinned (default = [null]) and browser.newtabpage.blocked prefs that you can check/modify on the about:config page

zxxholly
zxxholly Question owner
more options

This somehow fixed itself after a couple of days of unpinning. I'm not sure what I did but if it comes back I will try your method. I just had a look in the about:config page and couldn't find either browser.newtabpage.pinned, nor browser.newtabpage.blocked, but that may be because I no longer have anything pinned. Thank you.

Modified by zxxholly

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Yes, those prefs are only there if you have either pinned or blocked an item on the about:newtab page.

If it happens again and you do not keep changes after a restart then see: