<![CDATA[Can’t log into Facebook Messenger in the sideba]]>I‘m facing issues lately when trying to log into Facebook Messenger in the sidebar after a new install. I‘ve enabled „block third party cookies“, but even allowing them makes no difference.. I get a blank page or at best a „normal“ Facebook window. Logging into Facebook in their regular web page doesn’t help either. Refreshing the sidebar page mostly logs me out, too.
I‘ve done this so often before, but as of now it doesn’t work.
Any Facebook related problem or coming from Opera? I don’t know.

]]>https://forums.opera.com/topic/85388/can-t-log-into-facebook-messenger-in-the-sidebaRSS for NodeSun, 08 Mar 2026 19:06:48 GMTSat, 28 Jun 2025 07:49:57 GMT60<![CDATA[Reply to Can’t log into Facebook Messenger in the sideba on Wed, 02 Jul 2025 08:22:47 GMT]]>@leocg As of today, it's working again.

]]>https://forums.opera.com/post/388485https://forums.opera.com/post/388485Wed, 02 Jul 2025 08:22:47 GMT<![CDATA[Reply to Can’t log into Facebook Messenger in the sideba on Sat, 28 Jun 2025 15:06:49 GMT]]>@leocg I did it both ways. No difference. As I said: Going to messenger.com triggered the same issue, also in another browser. Really seems to be caused by Facebook.

]]>https://forums.opera.com/post/388268https://forums.opera.com/post/388268Sat, 28 Jun 2025 15:06:49 GMT<![CDATA[Reply to Can’t log into Facebook Messenger in the sideba on Sat, 28 Jun 2025 13:43:35 GMT]]>@DerSchlingel Any difference if you resize the panel?

]]>https://forums.opera.com/post/388265https://forums.opera.com/post/388265Sat, 28 Jun 2025 13:43:35 GMT<![CDATA[Reply to Can’t log into Facebook Messenger in the sideba on Sat, 28 Jun 2025 13:43:01 GMT]]>@DerSchlingel Did you also login to Messenger or Facebook in a regular tab in Opera before opening Messenger on sidebar?

]]>https://forums.opera.com/post/388264https://forums.opera.com/post/388264Sat, 28 Jun 2025 13:43:01 GMT<![CDATA[Reply to Can’t log into Facebook Messenger in the sideba on Sat, 28 Jun 2025 11:27:14 GMT]]>@leocg I've tried to do this: I'm already logged in into Facebook on Vivaldi. Now, I headed on to www.messenger.com - the URL which also Opera in the sidebar will probably load for the Facebook messenger. And, to my big surprise, this also failed, too. Not only had I to give in my credentials (although being logged into Facebook already), it also showed me: "This page is empty."

I guess this may happen because of Meta's attempt to combine Facebook and Instagram messaging into one application.

]]>https://forums.opera.com/post/388256https://forums.opera.com/post/388256Sat, 28 Jun 2025 11:27:14 GMT<![CDATA[Reply to Can’t log into Facebook Messenger in the sideba on Sat, 28 Jun 2025 11:15:49 GMT]]>@leocg Even with a clean install without my personal settings it doesn't connect. I'm shown a blank page with the word "Fehler" (German for Error).
So it's either something on Opera's side or maybe even more plausible on Facebook's side.
I've experienced something weird with Facebook in any other browser as well: When I try to switch from my personal account to a professional one, that's connected to my private one, it takes quite some bit to load, as if there were nothing happening at all. This appears on Vivaldi, Edge, Firefox and Safari alike.
To me it seems that Facebook has changed something internally about connecting different profiles and maybe even sites.
And maybe, the sidebar issue could be something that the Opera team may investigate.

]]>https://forums.opera.com/post/388255https://forums.opera.com/post/388255Sat, 28 Jun 2025 11:15:49 GMT<![CDATA[Reply to Can’t log into Facebook Messenger in the sideba on Sat, 28 Jun 2025 08:07:53 GMT]]>@leocg Opera One, latest version. It only concerns the sidebar. The regular page in the window isn’t affected.
When I give in my credentials and allow for logging in my Facebook app, I get these results in the sidebar. Still I blame the third party cookies thing somehow, maybe I should enable them before the the very first log in.

]]>https://forums.opera.com/post/388253https://forums.opera.com/post/388253Sat, 28 Jun 2025 08:07:53 GMT<![CDATA[Reply to Can’t log into Facebook Messenger in the sideba on Sat, 28 Jun 2025 07:56:41 GMT]]>@DerSchlingel Can you login in other browsers?

]]>https://forums.opera.com/post/388252https://forums.opera.com/post/388252Sat, 28 Jun 2025 07:56:41 GMT<![CDATA[Reply to Can’t log into Facebook Messenger in the sideba on Sat, 28 Jun 2025 07:55:42 GMT]]>@DerSchlingel Opera One, Opera GX or Opera Air?

]]>https://forums.opera.com/post/388251https://forums.opera.com/post/388251Sat, 28 Jun 2025 07:55:42 GMT