If you start Chromium from the command line with a URL, it will open with that page, eg:

chromium http://susestudio.com 

As for opening the browser fullscreen, man chromium has an -app option:

--app=URL
Runs URL in "app mode": with no browser toolbars.

which seems to be the closest option.

Similarly, Firefox can be started the same way, with your required URL as an argument to the command.

If you start Chromium from the command line with a URL, it will open with that page, eg:

chromium http://susestudio.com 

As for opening the browser fullscreen, man chromium has an -app option:

--app=URL
Runs URL in "app mode": with no browser toolbars.

which seems to be the closest option.

Similarly, Firefox can be started the same way, with your required URL as an argument to the command. To open Firefox in full screen, create a new profile using the -ProfileManager option, change to Fullscreen and then whenever you start Firefox with that profile, it will use the Fullscreen option.