Recently, I can't do something as basic as renaming Firefox bookmarks anymore. I suspect it happened after I accidentally pressed something when about:config was on my sidebar. I don't think it's my extensions' fault, because I tested doing it in Safe Mode with all add-ons disabled. Also I don't think it's Firefox itself's fault, because I've tested running it on a different account. I ask you all to help me out of your good will 
*Edit*
Just to clarify, I can rename fine on folders, and feeds in my bookmarks, but not links. When I try to, after right-click and pressing properties, the window shows up as usual, but when I click to save changes, nothing happens and it just stays there.
*Edit*
Just to clarify, I can rename fine on folders, and feeds in my bookmarks, but not links. When I try to, after right-click and pressing properties, the window shows up as usual, but when I click to save changes, nothing happens and it just stays there.