Google has been experimenting with removing the bar for Chrome users, but it shouldn't be removed for Firefox users.

When you have a problem with one particular site, a good "first thing to try" is clearing your Firefox cache and deleting your saved cookies for the site.

(1) Bypass Firefox's Cache

Use Command+Shift+r to reload the page fresh from the server.

Alternately, you also can clear Firefox's cache completely using:

Firefox menu > Preferences > Advanced > Network mini-tab > Cached Web Content : "Clear Now"

If you have a large hard drive, this might take a few minutes.

(2) Remove your google.com cookies (save any pending work first). While viewing a page on the site:

• Tools menu > Page Info > Security > "View Cookies"

Here you can remove your Google cookies individually.

Then try reloading the page. Does that help?

I did all that and it didn't solve the problem.

Eventually, I restarted my computer. Did all those things a few more times. Eventually, the menu bar reappeared. Still not certain anything I did solved the problem.