Just noticed that some links are not opened in new (background) tab when middle-clicked, but are ajax-loaded instead, as if they were clicked with primary mouse button. Did I miss something - is this a feature? Or a bug?

For example, any page with an article (paper) details on wiley.com contains links in "ARTICLE TOOLS" block, which are ajax-loaded in the current tab being middle-clicked, while links from the breadcrumbs or the page footer are opened as expected - in a new background tab.

There are two problems with an open button. First, lets say a normal user just want to download an important file. The open option sounds good, so the user use it to view the file. And then, a bit later, the user want to find the file again, but then it turns out that it's been removed.

If "a bit later" is during the same browser session, the file should be still there. And nobody should care for "normal user" not knowing what the open button on the download dialog is designated for. It's the same, be it Firefox, Chrome, Safari, even IE and Opera before v. 15.

It's similar to target="blank" property which is now non-valid for good reason. It's all up to the user to decide whether to open the link in new tab or in the same tab. And no one should force me to open the link in the new tab to help me avoid loosing the current page, when I consciously choose to discard the old page and reuse the current tab.

Secondly, as leocg said, if the user knows what the function of the open button is (ie. that the file will be removed later automatically), and counts on that, what if the file isn't removed and slows down and fills up the computer in a temp folder? Windows is known for that.

If the folder is not auto-cleaned, then it's not the temp folder in my opinion. If there are no pre-configured temp directories in Windows, it's possible to create one in one of the Opera paths. And force empty the directory on exit or when its size exceeds the limit (could be configurable).

I agree that such a basic functionality should be built-in. Previously I was a fan of the Speed dial, but now I prefer a clean blank page for the new tab.

This is definitely one of the most actively discussed suggestions for Opera browser since v. 15. Personally, I miss it more than any other features of the pre-12 Opera. And because of the lack of the real tab stacking I feel uncomfortable with any other browser.

So, please, bring it to the new engine. And, if possible, with the auto-stacking functionality built-in. Please?

For me it's quite obvious why do we need such feature:

• one may use the "Open..." button when he or she needs only to view the downloaded file once and doesn't care where it's downloaded to (should be a temporary directory with auto clean-up).
• "Save" button is useful when one needs to save a file for later usage.
• "Save to default folder" should be useful when file is downloaded for a quick editing/one-time usage and doesn't require a specific download location (something in-between of the two above).

And there are threads with the same request:

• http://forums.opera.com/topic/5090/download-manager
• http://forums.opera.com/topic/5357/download-dialog-window

Also, a download dialog window contains such a helpful info as a file size - it can help to decide whether to download a huge file or was it a mistake.