Version 8.1.9 freezes while importing keystore

[eiabea]

Describe the bug
After importing a metamask wallet from a seed and trying to import a keystore json file into this account, metamask freezes until chrome asks to "wait" or "exit" the tab

Steps to reproduce (REQUIRED)
Steps to reproduce the behavior, libraries used with version number, and/or any setup information to easily reproduce:

1. Install metamask 8.1.9
2. Import wallet from seed
3. Click on import account
4. Select type "Json"
5. Enter your password
6. Experience a freeze of the metamask tab

Expected behavior
Account gets imported

Browser details (please complete the following information):

• OS: Linux
• Hardware Wallet: No
• Browser: Version 87.0.4280.66 (Official Build) Arch Linux (64-bit)
• MetaMask Version: 8.1.9

Additional context (Error Messages, etc.)
Downgrading MetaMask to 8.1.5 fixed the issue

[tmashuang]

After installing and import, but before getting to the home page, are you accepting participating in the metrics page? Sounds like a #10097.

[eiabea]

After installing and import, but before getting to the home page, are you accepting participating in the metrics page? Sounds like a #10097.

No i haven't actually

[tmashuang]

Where was the json file account created? I've imported a json account created from Mycrypto.

[eiabea]

Where was the json file account created? I've imported a json account created from Mycrypto.

directly in geth

[shoenseiwaso]

I'm seeing the same issue with MetaMask, Chrome on macOS. MetaMask pegs a CPU core for several minutes until killed when attempting to import a JSON keystore file.

[adamsoffer]

Can confirm this on my end as well. Brave on macOS. Running Big Sur on the Apple M1.

[miki-bgd-011]

Same issue, Ubuntu 20, Chrome 87.0.4280.88.

[davidgamero]

Thought I had this same issue on Intel Mac running Big Sur, CPU at 100% and fan lifting off. Metamask extension completely unresponsive. About 15min later it pops up and wallet was imported. Used to import from JSON instantly
Chrome 87.0.4280.88

[kyrogue]

same issue happening, on chrome 87.0.4280.88 , metamask 8.1.9 , when importing JSON key it hangs and never recovers

[rekmarks]

8.1.10 is live on Firefox and is rolling out to Chrome and Brave as we speak. Can someone please confirm whether the issue persists with the new version?

[davidgamero]

I was unable to reproduce the issue before but I can confirm my configuration continues to import wallets with the same freezing behavior on 8.1.10