Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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 do I prevent FF screen from being split in half on startup?

  • 4 tontu
  • 7 am na jafe-jafe bii
  • 11 views
  • i mujjee tontu mooy grayfolded

more options

Everytime I open FF the screen is split in half, with the bottom half blank. I can restore the full screen by dragging the thin divider to the bottom. How can I prevent this from happening?

Everytime I open FF the screen is split in half, with the bottom half blank. I can restore the full screen by dragging the thin divider to the bottom. How can I prevent this from happening?

All Replies (4)

more options

Make sure that you aren't using a bookmark that open is the sidebar.

Opening in the side bar is the default for bookmarks that are created via a link or button on a website.
You can check the Properties of a bookmark via the right-click context menu in the side bar (Ctrl+B; Cmd+B on Mac).
In the Bookmarks Manager (Bookmarks > Show All Bookmarks) you can click the More button in the Details pane at the bottom right.
Make sure that "Load this bookmark in the side bar" is not selected.

more options

I have a hundred-plus bookmarks, so checking each one to see if "Load this bookmark in the side bar" is selected would be a royal pain. Any way to do this more efficiently?

BTW, the I loaded FF in safemode, and the problem stopped, so it's an extension causing the problem. Any way to find out which one, other than disabling one at at time?

Thanks

more options

If you have many extensions then first enable half of the extensions to test which half has the problem.
Continue to divide the bad half that still has the issue until you find which one is causing it.

more options

Adblock was causing the problem. Now, I have to figure out why. Thanks.