User-Agent: Mozilla/5.0 (Windows; U; Win98; lb-LU; rv:1.1) Gecko/20020826 Build Identifier: Mozilla/5.0 (Windows; U; Win98; lb-LU; rv:1.1) Gecko/20020826 When I open several Tab with the same URL and Bookmark them as a group, selecting this group reopens all those tabs. However, after a complete Mozilla restart, selecting the group only opens 1 tab. Reproducible: Always Steps to Reproduce: 1.Open 2 tabs with http://www.mozilla.org 2.Bookmark them as Group 3.Shutdown Mozilla, restart it, select that group Actual Results: 1 tab showing http://www.mozilla.org is opened Expected Results: 2 tabs with that URL should be opend. (jhust after adding the group, before restarting mozilla, it works fine) Same Problem on: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.2a) Gecko/20020910 This could be usefull to open several tabs of the same freemail service (for example) to login to different accounts at the same time.

This is due to bug 51683 (Unable to have 2 differently named bookmarks for the same url). Because of this bug, you can't have 2 bookmarks with the same URL in the same folder, and thus, in the same bookmark group. *** This bug has been marked as a duplicate of 51683 ***