Review for Extra Folder Columns by Scott Reed
Rated 1 out of 5 stars
Adding the account name to every line uses up valuable screen space that could be used for more columns. Makes this pretty much useless unless you're willing either to make your folder list awkwardly wide or to rename your accounts to something short and meaningless.
This review is for a previous version of the add-on (1.1.3). This user has other reviews of this add-on.To create your own collections, you must have a Mozilla Add-ons account.