One of my readers wanted to sign up to my feed using his favorite Opera browser. However failed to do that since Opera does not yet understand "feed://" protocol. Hence, I decided to drop this quick note on how to make Opera delegate feeds to others until the times it’s capable 
In Opera go to "Tools -> Preferences -> Advanced -> Programs", click on "Add…", and enter "feed" for Protocol and "firefox", or ANY preferred RSS reader in "Open with other application":
Now click "Ok" followed by another "Ok" and enter a "feed://" address to the address bar, for example this one. Once you hit Enter, you favorite RSS Reader (Firefox in my case) will open this feed, and your Opera will feel much better, since it just delegated a heavy unit of a hard work to somebody else
Happy hacking people!
Nice fix! I never even knew it had an issue.
why don’t you use Firefox right away!?
wow John, George – you guys are fast. I did not even had a chance to review the post
BTW, I put NoFollow plugin in use, so your comment’s link is not lost in WWW
don’t use Opera, but good to know, good to know
Although find it strange Opera is not Web 2.0 ready
Or even easier. Click the RSS icon in the address bar of Opera. To make things easier for Opera users in the future, you could serve Opera users a link without feed: in the Entries RSS URI from now on.