Opera features, issues, and bugs that need to be addressed:
(Features, issues, and bugs in red are those that mean that unless they are fixed, Opera cannot be used as a primary browser)
FEATURES: in order of importance / number of people who need them
Don't load tabs until selected
tab-stacking disable option! please!
Force cache object or webpage
Add "Site zoom" to "Site preferences"
IRC feature requests (contrary to what some people think, IRC is NOT dying, it is still popular)
ISSUES: in order of importance
opera:crossnetworkwarning issue (bug that can cause data loss)
losing form contents (potential data loss issue)
Opera should 'remember' window position when reopening
refreshing a page 404's, then clicking back does not restore cached content
-no topic or bug report yet; pending-
BUGS: in order of importance
Opera not caching Https content properly
Supposedly fixed in this build: http://my.opera.com/desktopteam/blog/2012/10/16/happy-eyeballs
PLEASE remove PROXY confirmation everytime Opera starts!
(Bug) New tab's length changes after finishing loading