User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2b5) Gecko/20091204 Firefox/3.6b5 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2b5) Gecko/20091204 Firefox/3.6b5 Relative tabs are entirely too confusing to use. I never know where my tabs are going to open. Please add an option under Options > Tabs to turn off relative tab opening. Something this basic should not require an about:config hack to change and there is plenty of room in that section of the Options dialog for this. Reproducible: Always