Your bookmarks are NOT lost. Read here! Rated 1 out of 5 stars

https://downloads.yahoo.com/faqfirefoxtoolbar

If you click where it says "My Yahoo" you can add applications to your My Yahoo page. And if you select Bookmarks, you will find all your bookmarks stored there on the homepage of My Yahoo.

I don't like it but at least our bookmarks are safe and not lost. It looks like Yahoo is not supporting the toolbar anymore and wants people to use their My Yahoo pages more.

This review is for a previous version of the add-on (5.0.2). 

the problem might be Firefox? Rated 1 out of 5 stars

If you read the Yahoo Toolbar FAQ and Help sections, it looks like the Yahoo Toolbar is supposed to remain functional like it used to be. But recent "upgrades" have totally destroyed the Toolbar, which makes me think that Firefox has done something wrong?

This has happened before. On previous Firefox upgrades in the past it took a few days for Firefox to catch up and make the Yahoo Toolbar work again.

Yes, it is possible that we should be blaming Firefox for this disaster. Read the FAQ and Help sections on the Yahoo Toolbar and see for yourselves:

https://help.yahoo.com/kb/toolbar/add-custom-apps-shortcuts-yahoo-toolbar-sln5079.html?impressions=true

This review is for a previous version of the add-on (5.0.2). 

Works great! Rated 5 out of 5 stars

Best toolbar ever! The Yahoo toolbar is now working so you can go ahead and download the latest version of Firefox.

This review is for a previous version of the add-on (3.2.15.20160125012922).