Tabs are unresponsive, won't close when x is clicked, and there is NO "New Tab" + anywhere on the toolbar.
I cannot open new tabs manually. There is no + to do it with. When Mozilla opened Troubleshooting info in new tabs, I can't close them by clicking the x. They won't close. I tried restarting Firefox, then I restarted the entire computer, but it won't correct itself.
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move new tab [+] on the tabs bar to the right side of Navigation bar for the white on black new tab indicator. That is item #5 in the following
You can make Firefox 6.0.2 look like Firefox 3.6.*, see numbered items 1-10 in the following topic Fix Firefox 4.0 toolbar user interface, problems (Make Firefox 4.0 thru 8.0, look like 3.6). Whether or not you make changes, you should be aware of what has changed and what you have to do to use changed or missing features.
There is a lot more beyond those first 10 steps listed, if you want to make Firefox more functional.
Please mark "Solved" one answer that will best help others with a similar problem -- hope this was it.
You can find the New Tab button showing as a '+' on the Tab bar.
You can open the Customize window and drag the New Tab button that shows as a plus sign (+) from the Tab bar on another toolbar and it will become a regular toolbar button like the New Tab button that you have in Firefox 3 versions.
If you can't find the New Tab button then click the "Restore Default Set" button in the Customize window.
If you want the New Tab button at the far right end of the Tab bar then place a flexible space to the left of it.
- New tab toolbar button: https://addons.mozilla.org/firefox/addon/new-tab-toolbar-button/