Odd behavior of tabs, including the following: 1. While trying to access content on a page in an open tab, an existing tab inserts itself in the first tab (left-most) position 2. While trying to download a standard pdf file the save windows opens but does so on top of another, irrelevant tab. This happened also in Troubleshooting Mode. It happened today for the first time, but it's not happening all the time. Just every so often. None of this happened in the version prior to 149 (ver. 148.xx)! I'm using Tab Reloader, and have been using it without a problem for a long time. Would greatly appreciate your advice! J