Anyway, like leocg said - latest Opera versions execute from same location and thereby you likely need only one-time click to firewall promt.

IMO This was the initial complaint....

Not too many people care enough about security to have to click on firewall options repeatedly all day... one wants to set settings and be left alone... there is also the argument of convenience over security... personally, I do not lock my car doors when they are parked at home....it's an acceptable risk to save me time....

In either case it's good that the problem is solved I haven't seen the problem since I updated my computer about 2 months ago...must have just co-incided with execution from same location change...

I never got prompts from them; they just work. I have zero security concern with them because they're not asking me to enable them on the firewall

False sense of security. Digging into firewall I can see that on computers, where Chrome is installed, there is specific firewall rule to allow Chrome mDNS traffic in; this rule is probably created by Chrome installer and you just don't know about it. Similar rule exists for Edge. I have no PC with firefox installed and cannot say anything about it.

Most likely Opera installer does not create such firewall rule, thereby letting user to decide about it. This may seem a bit more inconvenient, but is actually more secure approach.

This thread is dead. The moderators aren't understanding the concern, and it's just going in circles of denial and deflection.

It could also be possible that users do not understand logic behind firewall prompts

Anyway, like leocg said - latest Opera versions execute from same location and thereby you likely need only one-time click to firewall promt.

Oh well. I'll just keep declining the firewall prompt...

You could also disable Chrome and Edge firewall rules then, makes behavior similar

At most you should see only the first one, like you would see with any other browser.

Neither can I believe that I still randomly get firewall prompts from Opera.

regarding you not having issues with other browsers, probably there are rules for them already

I never got prompts from them; they just work. I have zero security concern with them because they're not asking me to enable them on the firewall

This thread is dead. The moderators aren't understanding the concern, and it's just going in circles of denial and deflection.

Oh well. I'll just keep declining the firewall prompt... I use Opera for a specific reason, but maybe I need to reduce its number of users even though I enjoy using different browsers and not just supporting the big machines.

And regarding you not having issues with other browsers, probably there are rules for them already.

Are you saying that once the dialog is cancelled, we have to go to the firewall rules for Opera, and then do whatever there to stop the dialogs?

And then what if we're OK with the entries, even if they're all denied? Apparently having them set automatically after we click Cancel doesn't stop the dialog. So even if we like the entries, we have to do what...? Save them again manually? Change them, then change them back? This is kind of silly. Oh I forgot to mention again that Opera is the only app I'm having the issue with.

Which entries do you mean?

If Opera needs something through the firewall, and it doesn't add the entry to the firewall, but other browsers do, why doesn't Opera add its entries to the firewall?

Which entries does Opera want to use, anyway? What exactly does it want to do through these entries? Why does it operate perfectly fine without me needing to manually enable firewall entries? I'm still seeing nothing showing that it's not a security risk.

This Really looks fishy now. I thought it did before, but now...

What's going on, Opera developers?

I feel like they're trying to spy on us or collect information through our firewall in a way that should remain blocked.

I'll continue blocking it until I see adequate information for what exactly they want and why it needs to be there. Since no other browser I use does this, I see no reason for Opera to need to do it too. This is creepy AF.

So again, Exactly what opera functions are triggering this warning? If you're unable to provide useful information, the smartest action any of us can take is to discontinue using opera.

@jhl As expected.

I'm hoping everyone realizes that this is not a good thing, completely unnecessary, and should never happen.

The user can't see what exactly it's trying to access, and shouldn't have to go through a long technical forum thread to try to understand it or resolve it.

No other apps I open do this. It's a security concern. Opera developers need to fix it. We shouldn't have concern randomly opening the app that it needs a firewall port opened for some unspecified reason.

In Chrome this can be switced off by disabling setting "Show notifications when new printers are detected on the network".
Opera seems not to include any mDNS (also called Avahi, ZeroConf, Bonjour) related settings or flags.

Edit: This behavior can be related to some kind of notifications. I have (desktop) notications disabled here and no firewall prompts; in other place I did enable notifications (to see MS Teams activity) and I recall that I have seen there some firewall prompts afterwards. I correlated them with switching between various VPN networks, but actually they could be have triggered by (first) notifications (after Opera update) also.

It happens for me most of the times I launch opera. The start website is ebay.

Ebay does indeed trigger it for me in Chrome, Vivaldi and Opera. I can make them both not trigger it if I enable Opera's adblocker and tracking protection and have uBlock Origin enabled in Chrome. I'm looking at the net log for Opera to try and find out what tracking/ad site URL Ebay loads that triggers it. But, I haven't had any luck yet.

I can't seem to get Firefox to trigger it, even with all tracking protection off.