User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.10) Gecko/20050716 Firefox/1.0.6 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.10) Gecko/20050716 Firefox/1.0.6 Tools>Options>Tabbed Browsing>Tabbrowser Preferences>Links>Load links in "New Tab"/Load external links in "New Tab" does not cause a new tab to open when links are clicked. (Ctrl-click on link does open new tab, as does right-click open link in new tab.) I was also unable to cause left-click open link in new tab without Tabbrowser Preferences on some previous builds. Reproducible: Always Steps to Reproduce: 1.Click on link 2.Current page changes to new page. 3. Actual Results: No new tab is started. Expected Results: Opened a new tab, and loaded the linked page into that tab. (Preferably in a background tab.)
This is caused by a bad extension and is not a bug in Firefox.