@IanR

Could be an Opera permission issue with how extensions access the clipboard. Check whether the extension has clipboard permissions and try testing it on a regular webpage rather than an internal Opera page. If it still happens with multiple extensions, it may be an Opera-specific limitation or bug.

@Zeykr

I'd try clearing the wallpaper cache first, but since it happens with both official and third-party wallpapers, it sounds more like a scaling issue in Opera GX than a problem with the images themselves.

You could also try changing Windows display scaling to 100% temporarily and restarting Opera to see if the wallpaper fits correctly. Does it still happen at 100% scaling?

@JinaeW Since Netflix works in a Private Window, I'd suspect something in your normal Opera profile rather than a compatibility issue. Try clearing Netflix's site data and cookies first, then sign in again. If that doesn't help, check whether hardware acceleration or Opera's built-in ad blocker is interfering. You could also test with a fresh Opera profile before resetting your current one.

@numetheus

For 1Password on Windows, try installing the extension from the Chrome Web Store, then open the 1Password desktop app and go to Settings > Browser > Connect to additional browser > Add Browser and select Opera. Opera needs to be installed under C:\Program Files. It's not officially supported, so some issues may remain. 1Password's instructions

@Goldesel
Have you tried disabling your extensions? One of them could be slowing things down or blocking parts of pages. The fact that Firefox loads the same sites fine makes that a good first thing to check.

@iwua Since it comes back even after recovery, try disabling extensions and testing in a new Opera profile. If it still happens there, it may be a bug in version 138. Does the blank tab reappear with all extensions disabled?

@Timbo9999 That top row is made up of suggested Speed Dials, separate from your own shortcuts. As far as I know, you can remove those suggestions but can’t manually move your saved sites into that row.

@iwua Sounds like Opera's session data may be stuck on that tab. I'd try fully exiting Opera through the menu, making sure it's closed in Task Manager, then reopening it. If it still keeps pinning itself, try Opera's Update & Recovery > Recover > Keep my data and only reset Opera settings. That option removes pinned tabs, so back up anything important first. What version of Opera are you running?

@Xss75 Since clearing the cache didn't help, try turning hardware acceleration off, restarting Opera, and testing the pointer again. Sometimes GPU drivers cause stuttering rather than fix it. If there's no difference, test with extensions disabled and check Task Manager to see whether Opera is using unusually high CPU or memory.

@jamessmith1 I'd test with extensions disabled first and see if it still happens. If it does, try a clean Opera profile. Since it's happening across multiple sites, I'd suspect an extension or Opera bug rather than the websites themselves.