Question: > 
> **Possible Duplicate:**  
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> [Is there a way to open a bookmark in the sidebar in Firefox without clicking on the bookmark in the bookmarks toolbar?](https://superuser.com/questions/30874/is-there-a-way-to-open-a-bookmark-in-the-sidebar-in-firefox-without-clicking-on-t) 
> 
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For example, I would like to open my Google calendar (set to open on FireFox sidebar) by Ctrl-Cmd-C.
Thanks.

Answer: 
Probably this add-on might help you: [iMacros for Firefox](https://addons.mozilla.org/en-US/firefox/addon/3863/)
Have you looked at all-in-one sidebar?

<https://addons.mozilla.org/en-US/firefox/addon/all-in-one-sidebar/>

I have not used this in years but according to the description, it has embeddable webpages in the sidebar and configurable shortcuts.

> 
> * open Bookmarks, History, Downloads, Add-ons, Page Info, Page Source, and Error Console in the sidebar
> * fully customizable toolbar at the left side of the browser
> * quickly show/hide the sidebar and the toolbar with a thin switch
> * toggle the sidebar by clicking or just by mouse movements
> * all panels are optimized for displaying in the sidebar (including slim lists)
> * place the sidebar on the left or on the right side of the browser
> * configure the behavior at the browser start or in fullscreen mode
> * MultiPanel for opening webpages in the sidebar, amongst other features
> * configurable shortcuts and additional buttons
> * third-party add-ons are supported
> * can be extensively customized
> 
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> 

However I don't know if you can assign a shortcut to open the sidebar without a CMD/Ctrl/ etc.