Opera 51 is now working.

I resolved the issue by downloading and installing all updates via the Linux Mint update tool. Obviously there must have been a missing or dated dependency that was resolved with the update.

The installation of Linux Mint 18 was done several months ago, and the machine was put to one side while I used another old box running Antix. A couple of days ago I decided to move to the Mint machine, and just assumed that Opera would install and run, just as it had done in AntiX.

I've just learned the importance of running updates in a timely fashion....

Yesterday I downloaded and installed Opera 51 in Linux Mint via gdebi. The icon is clearly in the menu system under the Internet category, but when I click on it, nothing happens.

A quick internet search only found one other person reporting a similar issue.

Firefox appears to work seamlessly, but I would like to use Opera as well.

Should I reinstall Opera, or is there something else that I need to do to get it to work?