https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data

• bookmarkbackups
• key4.db
• logins.json
• places.sqlite
• places.sqlite-wal
• xulstore.json

• This folder stores bookmark backup files
• Passwords
• Passwords
• Firefox bookmarks
• " "
• Toolbar and window size/position settings.

Install the Extension Pack:

1. Click File | Preferences CTRLG
2. Click the Extension tab and then click the + button
3. Navigate to where you saved the Extension Pack
4. Select the Extension Pack and click Open
5. When prompted, click the Install button
6. Scroll through the EULA and then click I Agree
7. Type your sudo password
8. Allow the installation to complete

sudo usermod -aG vboxusers <USERNAME>

Activate USB support:

Open up VirtualBox, right-click on the virtual machine that needs access to USB, and click Settings. In the VM settings window, click USB. You should see that USB is now available. Click on the + button under USB Device Filters to add a new device.

Locate the .vdi virtual disk

VBoxManage modifyhd NGINX.vdi --resize 30000