I often have multiple browser windows open at once. When I click the top bar to rearrange the windows, sometimes it will maximize the browser window.
It appears this will always happen if I double click the top bar, which is fine. However, sometimes it will happen when I only click the top bar once, which is highly annoying. How to turn off/fix this?
KDE Plasma 5.27.7
Do you mean Tabs or really multiple browser windows?
What I think is happening here: While trying to rearrange the tabs you move them not only horizontally but also vertically. Which creates a new fullscreen browser window (atleast for me on Firefox).
What browser are you using?
Thank you for your reply.
I use multiple browser windows, not tabs. I use a combination of chrome and firefox. It seems to happen randomly, but Iāll try to pay closer attention next time it happens.
Could be also a slowly dying mouse that sometimes double clicks.
Or maybe, when you rearrange the window you accidentally push it to the top screen edge, which also maximizes the window?
A possible workaround: use META+LEFT CLICK to move windows around.
That would be my guess.
If so, until you get a new mouse, you can turn off double-click-to-maximize in System Settings > Window Management > Window Behavior > Titlebar Actions tab > Double-click > [do nothing]
But really, you should get a new mouse. 
Theyāre not expensive, and a dying mouse will cause five billion other problems on the system that canāt be easily worked around in software.
Thank you for the reply. Itās a fairly new microsoft wireless desktop mouse, only a couple weeks old. I know it could still be defective, but I donāt think thatās the case. I will try turning off the double click to maximize setting, thanks again.
Edit: Iām also experiencing some weird issue that I canāt pinpoint either. Where somehow sliding the mouse a certain way, somehow triggers the zoom out overview setting, where Iām looking at all my active browser windows. Itās just a regular two button mouse, where you can also click down on the scroll wheel. So I guess Iām saying, I have more to learn about my mouse and the things it does with kde. I still donāt even know what āmetaā is 
Does this happen if you push your mouse to the top left corner? This is likely a āfeatureā. Check your Screen Edges setting.
Meta is the Windows Key on your keyboard.
āDoes this happen if you push your mouse to the top left corner?ā
Ahh, yes that is very likely what is happening and causing it, thanks! Also thank you for letting me know the windows key = meta
Oh, thatās a can of worms.
Long story short, Qt and KDE refer to the windows key as Meta for historical reasons. Other software may refer to it as Super. Emacs, bash and other software may instead refer to the Alt key when talking about Meta.
Itās utter chaos all around! Time to run in circles screaming with our hands up!
For the historical context, see Super key (keyboard button) - Wikipedia
ā¦ and on Macs you would know it as āAppleā key or āāā key or ācmdā (command) key.
