User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:188.8.131.52pre) Gecko/20090903 SeaMonkey/2.0b2 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:184.108.40.206pre) Gecko/20090903 SeaMonkey/2.0b2 Function "Add New Toolbar" won't work: no new toolbar will appear after confirming with Done. Reproducible: Always Steps to Reproduce: 1. Open Customize... by right-clicking on the bar right-hand to Help on Windows or by Ctrl+click over the navigation bar on Mac; 2. Click Add New Toolbar. Enter name, confirm with OK. Done. Actual Results: Observe: No New Toolbar is there. Expected Results: New Toolbar is added.
This also happens in Firefox/Minefield e.g. Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.3a1pre) Gecko/20090918 Minefield/3.7a1pre This is toolkit behaviour where the customize toolbar code deliberately deletes empty custom toolbars. Before clicking on "Done" you need to drag something - a spacer will do - on to the toolbar. Once you do that the bar won't disappear when you finish. You might say this is "broken by design". I'll move this over to Toolkit where a peer there can decide to either resolve this as INVALID/WONTFIX or convert this bug into an enhancement bug.
It's similar to bug 175635. On that bug we are waiting for a reply from the UX team. Could be a dupe then.