Opera tends to by default load the content from the clipboard if you do a middle click in empty space.

This can become quite a nuisance if you are trying to invoke the scroller feature found on most other applications.

The shortcut to fix this is Shift-Middle Click. That shows the option to select the action you want if you press the middle click.

Opera Software has just released the latest alpha version of their upcoming Kestrel release.

Checkout more: Opera 9.50 Alpha 1 is out

Mozilla Firefox users are lucky to have this functionality integrated in their address bar, which enables them to visit the first site of Google for a keyword when the user does not put in a valid website address.

Now, UserJS.org brings to you similar functionality by using a UserJS script which is so cool! The script has been developed by Nicolas Mendoza and requires at least Opera 8.0 to work. The site describes this UserJS as:

If the page cannot be found, this script forwards the content of the address bar to the I’m Feeling Lucky ™ search feature from Google. This behavior can be changed to use any other service.

Relevant Links:
How to use UserJS files
Link to the Auto search forwarder UserJS Script

Here is another interesting tip I found which works in the fabulous Opera Web Browser. The application already comes with a feature called ERA (Extensible Rendering Architecture) which helps the user to get rid of horizontal scrollbars on weird or badly designed websites. However, if you are stuck with a one-way scroll mouse and have to surf sites with horizontal scrollbars, there is a tip, which can come handy.

Just get the cursor over the horizontal scrollbar and use the wheel in the mouse to slide the page horizontally instead of vertically! Mozilla Firefox does not show this kind of behavior so I believe that it is an Opera specific feature. Put your inputs in the comments!

Opera Browser:
Opera is a web browser, or a computer application for handling common internet-related tasks, including visiting web sites, sending and receiving e-mail messages, managing contacts, and online chat.

ERA in Opera:
Opera’s new Extensible Rendering Architecture (ERA) means no more horizontal scrolling and improved ability to print entire Web pages. In combination with Opera’s Zoom function, ERA also presents a compelling accessibility feature with which users can magnify Web pages dramatically and still view them without having to scroll sideways.

Opera Browser had this interesting and very useful option till some versions back. They removed it after noticing that a lot of websites come with their own CSS settings for visited links which nullified the usage of this feature. However, Google results and many other webpages still has no settings of this sort making this option still quite useful.

This can now be enabled on any of the recent versions of Opera in two different ways. One is to getting the old preference box back using a different ini file. Or directly modifying the opera6.ini file to include this following text under [Visited link] heading:

Strikethrough=1

For more such hidden settings, a page on the Opera website comes handy:
http://www.opera.com/support/usingopera/operaini/

Just make sure that the Opera Browser is closed while these changes are being made considering Opera will save the file from its cache back to the disk when closing. This would overwrite any changes done when the browser was open. Go on, explore and have fun!

Still Opera has me owned with rightclick and scroll mouse gesture to move between tabs…