Using 1PW 3.8.21 and Firefox 28 on 3.06 Core Duo iMac running OS X 10.6.8
Firefox preferences set to open new window in new tab and opening new site through 1PW always opened it in new tab until recently. Now it opens it in new window. This does not happen when using 1PW in Safari on same machine where it continues to open new site in new tab. How can I correct Firefox problem.