Hi folks, sorry for taking so long to reply. A couple of days after I posted this, the problem spontaneously stopped occurring, so I didn't get to do tests to get to the bottom of it. Glad it's no longer happening, sorry I can't shed any light for people this is still happening to!

Just managed to get Ultidash https://chrome.google.com/webstore/detail/ultidash-new-tab/dghaelfeofkkdebndhkfoneojddiebhd (like Momentum but totally free! And 90% of the good features included) to work on Opera thanks to this thread! Super chuffed.

Installed https://addons.opera.com/es/extensions/details/install-chrome-extensions/ and https://chrome.google.com/webstore/detail/new-tab-start-page/mjfahldkpjhcnfbbmdhpjolcjpcfhcpj and then went right-click copy link address on the greeting refresh button that appears under the greeting when you hover on it on the Ultidash tab. Put that link in as my new tab page, and it works! So I managed to get a url redirect for the new tab page from a new tab plugin that puts no url in the address bar. This may work for other Chrome new tab plugins with a refresh button!

Just managed to get Ultidash https://chrome.google.com/webstore/detail/ultidash-new-tab/dghaelfeofkkdebndhkfoneojddiebhd (like Momentum but totally free! And 90% of the good features included) to work on Opera thanks to this thread! Super chuffed.

Installed https://addons.opera.com/es/extensions/details/install-chrome-extensions/ and https://chrome.google.com/webstore/detail/new-tab-start-page/mjfahldkpjhcnfbbmdhpjolcjpcfhcpj and then went right-click copy link address on the greeting refresh button that appears under the greeting when you hover on it on the Ultidash tab. Put that link in as my new tab page, and it works! So I managed to get a url redirect for the new tab page from a new tab plugin that puts no url in the address bar. This may work for other Chrome new tab plugins with a refresh button!

Hi folks, sorry for taking so long to reply. A couple of days after I posted this, the problem spontaneously stopped occurring, so I didn't get to do tests to get to the bottom of it. Glad it's no longer happening, sorry I can't shed any light for people this is still happening to!

Any time a download, including saving a picture from right click, brings up the File Explorer window to give me the choice of where to save it, File Explorer freezes and won't work again until Windows Explorer has restarted. Frustratingly, I can't manually trigger this restart, since Task Manager is affected too.

Eventually, in its own time, Windows will sometimes deign to restart Windows Explorer itself, in which case it's all back to normal. But if I need File Explorer and it's not deciding to restart itself, then I have to restart the computer.

This doesn't happen with downloads from Chrome, which is pretty similar underneath to Opera. So why is it happening in Opera? Any ideas/fixes?