Open a new tab does not work

Yesterday the + tab opens a new tab when you click it. Today, it doesn't. New tab file does not work either. I use OS X El Capitan. I really want to use FireFox as my browser - it's much faster than Chrome. But I'm not going to open a new window every time I want to start something new.

Continue the behavior mode without failure of Firefox? https://support.Mozilla.org/en-us/KB/troubleshoot-Firefox-issues-using-safe-mode

If Yes, then we can rule out assorted settings, Extensions and themes. Next step is probably malware analyses, but I don't know what scanners are good for Mac OS.

If not, then it is time to start weeding the themes and Extensions 1 by 1 until the culprit is found.

Tags: Firefox

Similar Questions

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    Try to uninstall the Ask toolbar and it should work again. There is a compatibility issue with the Ask toolbar and the current version of Firefox.

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    Try Firefox Safe mode to see if the problem goes away. Firefox Safe mode is a troubleshooting mode that disables certain parameters, disables most Add-ons (extensions and themes).

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    If Firefox is not running, you can start Firefox in Mode safe mode as follows:

    • On Windows: Hold down the SHIFT key when you open the desktop Firefox or shortcut in the start menu.
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    Start Firefox in Safe Mode to check if one of the extensions (Firefox/Firefox/tools > Modules > Extensions) or if hardware acceleration is the cause of the problem (switch to the DEFAULT theme: Firefox/Firefox/tools > Modules > appearance).

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    This problem may be caused by an extension that does not work in the current version of Firefox.

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    Many users have discovered that this problem (in Firefox 30 and more) is caused by led modules, for example a plugin Conduit and/or an extension "Community Toolbar.

    You can check and disable the extensions on page modules. Either:

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