i am trying 2 open a new tab in my internet page by all opinions i.e. goin 2 file -> new tab, and ctrl +T and simply clicking the + sign next my current window which is already open but these will not work, although they worked yesterday. although i dont have a problem when right clicking on something and opening a new tab. i tried looking through tools but i couldnt fix it
This issue can be caused by an extension or plugin that isn't working properly.
Start Firefox in Troubleshoot Firefox issues using Safe Mode to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
The Foxit PDF toolbar also screws with the open new tab on Firefox, its weird as its intermittent and does not always cause the problem, i just disabled it anyway. It also seems to be affiliated with Ask.com