I use 5 browsers, this one is now 6. It's only in Opera where my two side mouse buttons are registered backwards / switched. I use them to go forward and backward in browsing history. Only in Opera do they switch. The code of what it is registered for is backwards is my guess. Using a Glorious Mode O, not important for this issue but still mentioning.

I can't see how it could possibly be a mouse software issue (as other posts claim) as the registration of the buttons from the software works perfectly and is registered perfectly everywhere else on my computer. I also use those buttons for other things too.

Specifically, in Opera does this get reversed.

Is there a flag, or code, or key code, or some place where I can change the registration of the codes within the code of Opera?

I am running Opera on a Mac.

@leland359
I did a lot of research and come up with a provisional work around using an app called BetterTouchTool https://folivora.ai.

I’ll put screenshots here of what I did.

@leland359 Forgot to mention, this isn't a problem on my Windows machine (I also use the same mouse on that machine as well). To be clear, it's the MacOS build that has the buttons going backwards, the Windows build has no problem with them.

Is anyone else having the issue of Opera starting up at login wit h no way of turning it off?

I've followed the instructions in the following forum post but it did not stop from auto starting up for me:

https://forums.opera.com/topic/24685/disabling-auto-startup/80
"If anyone still have problem with Opera auto startup with windows then do nex to stop it: Go to oper instalation directory open assistant and change browser_assistant extension file to be anything but just not exe. i have put browser_assistant.ex and opera didnt startup with windows."

There was also this post stating that this was a known bug back in 2018. Also mentioned things about messing with the registry but the registry was matching more than one folder inside.
https://forums.opera.com/topic/25203/opera-autoruns-at-windows-boot-with-4-tabs/33

Any thoughts on what to try next?

I can't find an official answer anywhere online .

@darkmagess
ref: https://forums.opera.com/topic/54498/1password-advised-me-to-use-firefox-brave-instead

Agreed! Why is this still an issue? The error message I'm getting is about digital signitures.

@leocg
ref: https://forums.opera.com/topic/54498/1password-advised-me-to-use-firefox-brave-instead

Is anyone else having the issue of Opera starting up at login wit h no way of turning it off?

I've followed the instructions in the following forum post but it did not stop from auto starting up for me:

https://forums.opera.com/topic/24685/disabling-auto-startup/80
"If anyone still have problem with Opera auto startup with windows then do nex to stop it: Go to oper instalation directory open assistant and change browser_assistant extension file to be anything but just not exe. i have put browser_assistant.ex and opera didnt startup with windows."

There was also this post stating that this was a known bug back in 2018. Also mentioned things about messing with the registry but the registry was matching more than one folder inside.
https://forums.opera.com/topic/25203/opera-autoruns-at-windows-boot-with-4-tabs/33

Any thoughts on what to try next?

@leland359
I did a lot of research and come up with a provisional work around using an app called BetterTouchTool https://folivora.ai.

I’ll put screenshots here of what I did.

@leland359 Forgot to mention, this isn't a problem on my Windows machine (I also use the same mouse on that machine as well). To be clear, it's the MacOS build that has the buttons going backwards, the Windows build has no problem with them.

I use 5 browsers, this one is now 6. It's only in Opera where my two side mouse buttons are registered backwards / switched. I use them to go forward and backward in browsing history. Only in Opera do they switch. The code of what it is registered for is backwards is my guess. Using a Glorious Mode O, not important for this issue but still mentioning.

I can't see how it could possibly be a mouse software issue (as other posts claim) as the registration of the buttons from the software works perfectly and is registered perfectly everywhere else on my computer. I also use those buttons for other things too.

Specifically, in Opera does this get reversed.

Is there a flag, or code, or key code, or some place where I can change the registration of the codes within the code of Opera?

I am running Opera on a Mac.

@leocg I saw your same reply to the same post earlier, was hoping for an official comment.

I can't find an official answer anywhere online .