Metamask Extension Opens in Full Screen whentime I launch Chrome. – How to Fix?

[ThisIs-Developer]

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I am using Windows 11, and whenever I open the Chrome browser, the @MetaMask extension automatically redirects and opens in full-screen mode on its login page. This happens every time I launch Chrome.

Is there a way to prevent Metamask from opening in full screen by default? Any settings or troubleshooting steps would be greatly appreciated.

Thank you!

[peteclark3]

Same for me, MacOS Sequoia

[ghost]

I did what any sane person would do and turned it off. Can turn it back on if i need to use it. Too spooky for me like im being watched by a big orange-faced president

[ThisIs-Developer]

That’s one way to handle it, but wait and see if someone has a more specific solution.

[chess-king-dot]

Hey! I ran into the same issue on Windows 11 recently and finally managed to stop MetaMask from hijacking the full screen every time I opened Chrome. Here's what worked for me:

Solution:

The issue is usually caused by Chrome reopening the MetaMask popup as a pinned tab or remembering it as a startup page. Here's how to fix it:

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Step 1: Check Chrome's Startup Settings

1. Open Chrome
2. Go to chrome://settings/onStartup
3. If “Continue where you left off” is selected, switch to “Open the New Tab page” instead.
4. Relaunch Chrome and see if MetaMask still pops up.

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Step 2: Disable MetaMask Auto-Launch (optional workaround)

Sometimes Chrome remembers extension popups if they were active during the last session.

1. Close MetaMask manually before closing Chrome.
2. Then, close Chrome completely (make sure no background processes are running — check in Task Manager).
3. Reopen Chrome — MetaMask shouldn’t auto-open now.

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Step 3: Remove MetaMask from Pinned Tabs (if applicable)

If MetaMask opens in a pinned state:

1. Right-click the MetaMask tab when it opens.
2. Click Unpin and close it.
3. Then, exit Chrome fully and reopen it.

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Final Tip

Also make sure Chrome is not running in the background after you close it. You can disable this from:
chrome://settings/system → Turn off “Continue running background apps when Google Chrome is closed”.

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Let me know if that solves it for you. It took me a bit of trial and error to nail this down, so hopefully it saves you some time!

[ThisIs-Developer]

I’m not looking for a typical AI-generated answer, but I appreciate that you took the time to generate and share this. I’ll give these steps a try and see if they work. Thanks!

[ntop001]

It does not work.

[ntop001]

Same, it's really a bad experience, I though I was hijacked before I figured out what happened.

[Rahulhanje]

try remove metamask and install again it solved for me

remember to get your screat seeds before deleting wallet

[ThisIs-Developer]

Final Update:

I also reported this issue on the MetaMask GitHub repository, and a developer from the team, @seaona, responded:

"Hi there 👋 thank you all for reporting this issue and apologies for the inconvenience 🙏 There's already a fix for it here, and it will be rolled out in the next Extension release 12.15."

You can check the official response here: [GitHub Issue #31450](MetaMask/metamask-extension#31450 (comment)).

Since this is a confirmed issue and a fix is already on the way, there’s nothing more we can do on our end until the update is released.

I appreciate everyone's responses and suggestions. Let’s mark this as the final answer and close the discussion. Thanks again!

[ntop001]

Just updated to 12.15, bug fixed.