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About this Add-on
Some features on versions older than 3.2 are removed on the version 4. I recommend you to use All-in-One Sidebar ( https://addons.mozilla.org/firefox/addon/all-in-one-sidebar/ ) if you want such features: one keyboard shortcut to toggle the sidebar, useful toolbar button, and so on.
- Works on Nightly 48.0a1.
- Fixed: Suppress "sidebar.contentDocument is undefined" error on the initial showing.
- Modified: "jar" archive is no longer included.
This add-on is not compatible with your version of Firefox because of the following: