Martin (author of SmartRSS) made extension for those situations, but it didn't publish it on Opera addons store
if you want to test it (you need to download it, and then drag NEX file on Opera to install it)
in frames, you will have right click option to open it in new tab
With Opera 12, if you want links in messages to open in the default browser on the system, you need to goto "Alt + P -> advanced -> programs", add the http and https protocols and configure them. The downside to this is that whenever Opera passes the link to the default browser, it'll create a blank tab. Also, for newsfeed messages with iframes in them, Opera will pass the link to the default browser instead of loading the page inline in the body of the message. Also, you might (I forget) not be able to navigate to http/https feed pages to subscribe to feeds and will instead have to go to "manage feeds" and add the feed manually. You might also then have to resort to viewing the source of the page to get the feed url to subscribe to as the icon in the address field might not work correctly.
You'll also won't be able to view http/https webpages that have toolbar button links on them so you can easily add buttons to Opera.
The upside of the standalone Opera Mail is that it will open links in the default browser automatically without the blank tab bug and without the newsfeed iframe problem. The downside of Opera Mail is there's no opera:config and most of the preferences are missing from the preferences UI. Also, some of them are broken. There's also UI missing for master passwords and certs etc. You can get some of that back with creating buttons, but some cert stuff still doesn't work. You can get opera:config back by doing this.
Opera Mail doesn't set itself as the default mail client on Windows. You have to do this to work around it.
Opera Mail 1.0 is also incomplete and buggy (due to trying to hide/disable/break all the browser-only stuff). Opera 12.x is not.
In Opera mail, if you want to add toolbar buttons, you either have to edit files or send yourself an opera:// button link and then click on it in the received message. Of course, if you configure Opera 12.x http and https, you have to do the same.
For me though, I chose to use Opera Mail 1.0 or Opera 12.x, just to avoid the issues of opening links in the default browser.
Sometimes it can be difficult to tell the difference between bug and suggestion. This topic required approval, presumably due the links. If suggestion box was better suited, the reviewing moderator would probably have moved it.
I neglected to mention that this not only occurs when you manually append :orig to obtain the original size. Twitter also delivers the :large variant by default when you click on images, resulting in .jpg-large when saving them. There are also many users and sites that post direct links to either :large or :orig. So this should be a common problem.
I managed to fix this and return to my old favorite search shortcuts. Just rename "Opera Next/xx.xx.xx/Resources/default_partner_content.json" file into something else. Then you can map any keyword to any search engine.
When new version of Opera arrives, you will need to rename new default_partner_content.json file, but then your old bindings will appear [no need to create them again].
This is about something different.
When when you type a URL in the address bar, pressing Enter opens it in the current tab. At the moment, when you have already typed a URL and then decide you want keep the current page open, you would have to press Shift+Home, Ctrl+C, Ctrl+T, Ctrl+Shift+V to select the URL, copy it, open a new tab, and paste and go to the URL. Shift+Enter would be a useful shortcut to open in a new tab, as was already possible back in Opera 12.
To enable the power user mode press the following key combination while you are on the settings page: Up Up Down Down Left Right Left Right b a
information from this site:
then go to menu -> Developer -> Task Manager