Hello, Every time I try to install an extension on Firefox I can't keep the extensions that I want enabled after I open Firefox. For example, I have tried installing the extension Firefox Test Pilot after installing it asks me to restart Firefox, I click restart Firefox of course. However this is where the problem comes in, after it restarts it then opens up an "Install Add-on" page for every extension I have installed and asks me this: Another program on your computer would like to modify Firefox with the following add-on: Test Pilot 0.9.0-dev-2ac545a By Mozilla then where the file is located on my computer then Install add-ons only from authors whom your trust. Then a check box and the follow Allow this installation. I check the box press continue and sometimes they ask to restart Firefox and sometimes the window just closes. Regardless of what it ask me after I restart Firefox close it and open it again it replays the same loop and opens a "Install Add-on" page for every extension I have installed. This in turn disables all of my extensions every time I close and reopen Firefox. I have tried refreshing or resetting Firefox and have even uninstalled and reinstalled Firefox multiple time with out any success. Please help! Thank you.