The Mozilla Labs Test Pilot program is studying the way users interact with the browser's menu bar. The Firefox user experience (UX) team is considering major changes of the menu bar design, at least for versions of Firefox running on "modern versions of Windows."

Mozilla Test Pilot is a Mozilla Labs project to collect "structured user feedback" from Firefox and other Moz Labs technologies. Users work with the program by installing the Test Pilot extension and then users have the option of participating in tests like the Menu Item Usage Study. All tests require user approval and data is anonymized before being sent to Mozilla.

After spending years in beta, Mozilla’s Weave synchronization tool is finally out in a new version 1.0. Firefox users who tote multiple devices will especially take to the extension, which is slated to eventually track and sync all your Firefox preferences. For now, Weave synchronizes your bookmarks, saved passwords, browsing history and open browser tabs–keeping all your personal data encrypted, and stored in the cloud (there is an option for storage on your own local server). Eventually extensions will be synced as well. Check out the details at GigaOM.

Just when you think you've got all the Firefox add-ons you'll ever need, the developer community is busy dreaming up more. Here's five add-ons you'll love that also might solve some problems you didn't even know you had.

TinEye Reverse Image Search - The next time you come across an image on the Internet and wonder where it originates, TinEye can help you track it down. If you've got this add on installed, all you need to do is right-click the image, select "Search Image on TinEye," and wait for the results. It tells you where an image is being used on the Web and can even search photos that have been edited, cropped, resized, and even find ones of higher resolution than the one you're viewing.