User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5b) Gecko/20030827 Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5b) Gecko/20030827 In 1.4 when opening grouped bookmarks, they woudl be appended to the other. In 1.5 they close those other, and there seems to be no way of reverting this to old behavior. Reproducible: Always Steps to Reproduce: 1.Open 2-10 tabs 2.Group Bookmark them 3.Close them 4.Open few tabs 5.Open those tabs from 2. Actual Results: Tabs form 4. were closed. Expected Results: Tabs shoud be not closed. New tabs shoudl be appended.
This was changed intentionally. See bug 203960. You should be able to get back your previously opened group of tabs by just hitting the Back button. So this bug will probably end up INVALID or WONTFIX.
Dupe of Bug 208278 Loading group of tabs from bookmarks closes all other tabs If you like the old behaviour, upgrade to 1.4.1, when it is coming, or download a nightly: http://ftp.mozilla.org/pub/mozilla/nightly/latest-1.4.1/ This improvement of usability is caused by Bug 203960 Make bookmark groups conditionally replace existing tabs instead of appending which didn´t implement the 'conditionally' Other bugs caused by this: bug 209290, bug 209292, bug 209294, bug 209295, bug 210519, bug 212122, bug 214765, bug 214781, bug 214783, bug 216711. *** This bug has been marked as a duplicate of 208278 ***