I just noticed this in the 1.5.6 upgrade, but had no luck here doing a search to find out where this might have been a problem: A new config.php option $config['enableReverseTabnabbingProtection'] has been added to allow you to disable the reverse tabnabbing protection that was added in a recent version. The reverse tabnabbing protection can interfere with some services that manipulate link targets (for example, to include affiliate links). While disabling this removes the protection, the trade off of lost revenue may be worthwhile. So, how exactly will this work? Would I set this to "off" or "0" to make certain revenues are not lost?