When I click on the plus sign to get a new tab it is not responding so I have to open up an entire new mozilla window if I want to look at mulitple websites at a time. I have restarted my computer several times and this has not helped. I would appreciate any advice anyone has and I would prefer to work with one browser open and have access to multiple tabs. Also, if I click a link on a website that will open a new tab but I cannot not open one by clicking the plus sign or the clicking new tab on the drop down menu.