Why keeps opening tab on Firefox start? Rated 1 out of 5 stars

What's up with this add on? Just started having this issue since December 2012. Don't have Get Glue set as a start up tab, but the add on insists on opening a tab every time I open Firefox, even restarts. Really ANNOYING!. Great they want to do mobile apps. I use Get Glue on all my Mobile Devices. However, there are times when I watch media on the computer &/or on 3D TV via computer. Using add on to check in is easier than needing to use multiple devices ALL the time. BUT - If this Add On Keeps Up with this Behavior It will Become ANNOYING ENOUGH TO UNINSTALL! If the Developers were Really Smart they would support BOTH Android & Windows versions of their Product! Won't give more stars until this issue is fixed. Will affect my feelings towards mobile app as well. It's "fun" to check in but I DO NOT need to! I can live with out this add on & their mobile apps, they are not a necessary part of life. I have a mobile app that tracks TV episodes watched & DVDs owned - Databases are more functional than Get Glue. Can and will give up all versions if I continue to be annoyed. I'm sure I'm not the only one.......