/browser/chrome/ THUNDERBIRD_60_0b3_BUILD1 THUNDERBIRD_60_0b3_RELEASE THUNDERBIRD_60_0b4_BUILD1 THUNDERBIRD_60_0b4_RELEASE THUNDERBIRD_60_0b5_BUILD1 THUNDERBIRD_60_0b5_RELEASE
drwxr-xr-x [up]
drwxr-xr-x browser
drwxr-xr-x browser-region
drwxr-xr-x overrides