Notes about the FBU file extension:
To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened
" (Windows 7) or "How do you want to open this file?
" (Windows 10) if you double-click the file. There click on "More apps"
and choose a suitable software to view such files on your PC or from email attachments.
The FBU file type is primarily associated with 'FEBE' by Chuck Baker Custom Software Consulting.
FEBE allows you to quickly and easily backup your Firefox extensions and more.
It will also actually rebuild your extensions individually into installable .XPI files to synchronize your office and home browsers.
FEBE also backs up and restores your extensions, themes, and (optionally) your bookmarks, preferences, cookies. and more.
The file is a renamed ZIP file.
Detailed information for file extension FBU:
Primary association: FEBE
File classification: Archive
Mime type: application/zip
To change file associations press Windows Key
and then Apps and Features
> Default apps
> Choose default apps by file type
Invalid file associations could be the result of underlying issues within your Windows PC.