Bugzilla

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:70.0) Gecko/20100101 Firefox/70.0

Steps to reproduce:

a) Start Thunderbird (for the first time or later).

b) Or start Thunderbird offline.


Actual results:

a) In the main view, the welcome page is shows, see https://i.imgur.com/QLkMxbW.png

b) when offline, the following is shown https://i.imgur.com/9IquWiK.png


Expected results:

A local version of the welcome page (including images and styleshoots) should be shipped with Thunderbird and be stored in e.g. /usr/share/doc/thunderbird and should be shown instead.

The setting under Preferences / General should be altered to offer the user the option "Load online welcome page" which is disabled by default. When disabled, it should load the local version. When enabled, the rest op the current functionality with the welcome page location can be enabled (greyed out) and used as is.

Benefits of this are:
- online activity is by default minimized by reducing security risk and prevent revealing unwanted online activity
- offline version is shown with images and style as default
- online version can be used and with custom location as is now

See also bug 1597611