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

PDFs open in a new window, and the tab can't be put in an existing window

  • 1 reply
  • 0 have this problem
  • 1 view
  • Last reply by zeroknight

more options

When I open a PDF from a file in Firefox, the file appears in a new browser window. When I try to click and drag the tab to another window, it just drags the PDF tab out of the window it was in and creates a new window, so the PDF tab won't go with the windows that already existed before the PDF was opened. The new window doesn't seem to have the same extensions I have installed on the other window, but it is also not an Private Window because that icon doesn't appear in the top right like it normally does. I am also signed into the same account on both windows.

When I open a PDF from a file in Firefox, the file appears in a new browser window. When I try to click and drag the tab to another window, it just drags the PDF tab out of the window it was in and creates a new window, so the PDF tab won't go with the windows that already existed before the PDF was opened. The new window doesn't seem to have the same extensions I have installed on the other window, but it is also not an Private Window because that icon doesn't appear in the top right like it normally does. I am also signed into the same account on both windows.

All Replies (1)

more options

External links open in the default profile, you can see which profile is default and change it by visiting about:profiles in the address bar.