Setting up B-Folders Firefox Extension

From Firefox, click on the link below. On the pop-up window, consequently click Allow, Add and OK.

B-Folders Firefox Extension v.5.2.1

NOTE: This extension uses the new WebExtentions API and requires Firefox 48 or later and B-Folders 5 Desktop Edition v.5.2 or later. The extension for previous versions of B-Folders is based on the XPCOM/XUL technologies and will not be supported since Firefox 57 (Quantum).