Firefox Open Bookmarks in new Tabs

This is something that is really bothering me in Firefox. All the bookmarks are opening in the currently active tab and I prefer them to open in a new tab instead. There is apparently no option to change this behavior in Firefox which is not very user friendly if you ask me.

Thankfully though a click with the middle mouse button is loading the selected bookmark in a new tab. I have to get used to this and I happen to forget about this even after months of using it. Nothing is worse than opening a bookmark in the tab were you are writing an article because that article, or at least part of it, gets lost when this happens.

I know that there are extensions, I think Tab Mix Plus does it, that add this functionality but I recently cut down on extensions that I’m using to make Firefox more memory friendly. If you know of another way, config setting that is, please let me know.