User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-GB; rv:1.9.1.1) Gecko/20090715 Firefox/3.5.1 Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-GB; rv:1.9.1.1) Gecko/20090715 Thunderbird/3.0b3 While it is possible to create saved searches (Virtual Folders) by going the Edit > Find > Search Messages > [search] > Save search as a folder route, attempting to save a search made from the search box at the top right of the main window fails - the dialogue to name the virtual folder, specify mailboxes to search etc never appears. Reproducible: Always Steps to Reproduce: 1. Click upon a mailbox 2. Enter a string to search for in the search input box on the top right of the window to perform a search 3. Click upon the magnifying glass on the left of the search box and select "Save search as a folder" Actual Results: The Save Search window which lets you name a search, specify which folders to search, change the search parameters, etc fails to appear. Very quickly the status bar displays multiple short messages the last being "Loading Message" Expected Results: The Save Search window should appear. It functions if you go through the menus to reach this route (Edit > Find > Search Messages > [search] > Save search as a folder), and has worked in earlier beta releases. This bug occurs with no addons enabled and while using the Thunderbird default theme. The version of OS X this occured on was 10.5.7 on both Intel and PPC macs. I can reproduce this bug on multiple Macs. A workaround for this bug is to rather than attempt to create Saved Searches (Virtual Folders) from the search box on the top right of the Thunderbird window to do: Edit > Find > Search Messages > [search] > Save search as a folder