Following the process for requesting the creation of a MediaWiki group, here is a proposal for MediaWiki Group Browser testing http://www.mediawiki.org/wiki/Groups/Proposals/Browser_testing
"This group welcomes anyone interested in the automated browser testing project of WMF. Technical skills and programming experience are NOT required..."
Your endorsements, improvements and feedback are welcome at the wiki page. Thank you!
PS: see also http://www.mediawiki.org/wiki/Groups/Proposals