Some web sites rely on mouse input, and can be hard to use with touchscreen browsers. One thing you can try in Firefox is to press on the menu, then move your finger away from the menu before lifting it from the screen. (This may or may not work, depending on how the web page was written.)

Thanks but I've tried all that. It happens in Chrome also. I've tried Opera and it works on that. I've read other forums and it looks like a Java script issue that Chrome and now Firefox Mobile cannot seem to resolve. My preference is Firefox and I'm sure as more tablets get out then this will be solved at some point. I just don't know how it is prioritized. I do know that in order for Androids to be viable in the business sector they need to address issues like these with a higher priority.