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Responsive design view - keyboard shortcut no longer works

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I used to use ctrl-shift-m to toggle Responsive Design View on and off, however this shortcut now brings up the main Firefox menu (which includes the Web Developer section that contains the menu item for Responsive Design View...)

Is there an easy way to get the shortcut working again.

I used to use ctrl-shift-m to toggle Responsive Design View on and off, however this shortcut now brings up the main Firefox menu (which includes the Web Developer section that contains the menu item for Responsive Design View...) Is there an easy way to get the shortcut working again.

Chosen solution

I think just a reset should make things working again. Try out the steps given at http://mzl.la/MnSTZB. Anyways when did this shortut stopped working?

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could you please give details of the version of firefox and OS you are using? I am using nightly and this shortcut is working fine.

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Sure thing - it's Firefox 25.0.1 on 64 bit Windows 8.1

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Seçilmiş Həll

I think just a reset should make things working again. Try out the steps given at http://mzl.la/MnSTZB. Anyways when did this shortut stopped working?

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That fixed it, thank you. It also enabled to locate what I think is the source of the problem - Firebug; reinstalling this causes the issue to come back, uninstalling makes it go away. It's annoying as I really need Firebug and ctrl-shift-m isn't listed as one of Firebug's shortcuts...

Thanks again.