To launch Firefox profile manager: Applications/Firefox.app/Contents/MacOS/firefox-bin –profilemanager.Execute the following commands in Terminal:.Drag-and-drop the profile folders to the cloud.For Thunderbird profile go to Macintosh: HD/Users/ /Library/Thunderbird/Profiles/'Profile name'.Look up Mozilla profile in Macintosh: HD/Users/ /Library/Application Support/Firefox/Profiles/'profile folders'.CloudMounter supports Google Drive, Dropbox, Microsoft OneDrive and Amazon S3. Install CloudMounter and mount a cloud storage service of your choice on your computer.To move profile folder of Firefox/ Thunderbird to a cloud you will need CloudMounter. Profile folders allow you to customize the web-browser and mail client on any computer in no time, so if you keep them online, you can download it anywhere anytime and apply the same settings on another computer and device. Similarly Mozilla’s mail client – Thunderbird, keeps your local mail, account settings and the toolbar in a separate folder. So if something happens to the browser, you can go to the profile folder and restore Firefox preferences in a couple of clicks.

This includes Firefox bookmarks, Firefox settings, downloads and browsing history, passwords, site-specific preferences, search engines, personal dictionary, autocomplete history, cookies, etc. Mozilla profile is a special folder where your user data is stored.

Mozilla thunderbird profile location