Hello Denise,

Thanks for contacting Mozilla Support! That does sound frustrating and I hope this helps the issue.

You should get a resize mouse cursor when you hover over the line that separates the Bookmarks window and the Browser. Just click and drag to the desired size you would like.

Please let us know if this corrects your problem.

Cheers, Patrick

can you try to replicate this behaviour when you launch firefox in safe mode once? if not, maybe an addon is interfering here...

Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems

This is usually caused by one or more bookmarks having a long title.

You can check that folder in the Library and shorten long names.

• Bookmarks > Show Al Bookmarks

• Bug 626066 - History, Bookmarks menus too wide because of pages with long titles on 64bits

Please do not comment in bug reports: https://bugzilla.mozilla.org/page.cgi?id=etiquette.html

I do NOT get a resize mouse cursor when you hover over the line that separates the Bookmarks window and the Browser. I tried that before contacting Mozilla support.

Can you please tell me how to "launch firefox in safe mode" ??

NONE of my bookmark titles are more than 6" long. So there is still appx. 6" of white space on the right side of the drop down menu.

hey denise, the article i've linked to in my prior reply explains how to start firefox in safe mode.

and just to be sure we're understanding your issue correctly (there's a difference between the bookmarks menu, the bookmarks sidebar and so on) - could you also add a screenshot that shows the issue?

How do I create a screenshot of my problem?

Hi Phillip, The problem just fixed itself. I have NO IDEA how, but it did. Thank you kindly for your time. Sincerely, Denise