Whoa!
I started using browser wallets years ago and it’s been a wild ride.
At first I treated NFTs like collectible JPEGs and barely read transaction prompts.
Then I watched a friend approve an unlimited allowance by accident, which cost them somethin’ they loved.
Now I read every detail before I tap confirm, because the small print matters more than it used to.

Seriously?
You should always inspect the “to” address, the amount, and the data payload when a site asks you to sign.
Most users glance and approve without parsing the calldata, which is a fast path to trouble.
My instinct said it was safe that one time, but actually, wait—let me rephrase that: trust requires verification.
On one hand UX needs to be smooth, though actually on the other hand safety can’t be optional.

Hmm…
NFT support in wallets has gotten better, but there’s nuance.
You need to understand how ERC-721 and ERC-1155 approvals differ versus ERC-20 allowances, because those differences change risk.
A careless unlimited approval gives a marketplace or contract permission to move tokens without asking every time, which is exactly the vector scammers exploit.
So routinely check and revoke permissions, either via your wallet UI or a reputable explorer service.

Here’s a screenshot that always makes me pause when I see it—

Whoa!
When a signing dialog shows a “spender” address that you don’t recognize, do not click confirm.
Look up that address on a block explorer or the contract verification tab, and inspect the contract source if it’s available.
Initially I thought the UI would warn me more clearly, but then realized that different extensions present data in different formats and some hide the calldata behind “advanced” toggles.
So if something’s obscure or the gas estimate looks odd, pause and check again.

Really?
Private keys are the thing to protect above almost everything else in crypto.
Use a hardware wallet for high-value NFTs and for signing transactions that matter, because the key never leaves the device and that reduces phishing attack surfaces.
I’m biased, but a cold-storage seed backed up on paper in a safe or in a bank deposit box is a solid move for assets you want long-term.
For day-to-day activity keep a separate hot wallet with only the funds you plan to use, and treat wallets like separate bank accounts with different risk profiles.

Practical Steps and Tools

Hmm…
Initially I thought multisig was overkill, but then I watched a transaction get reversed by a co-signer and realized it’s a lifesaver for shared collections.
Add a passphrase to your seed if your wallet supports it, because that extra word acts like a second-factor to your backup and it’s cheap insurance.
Watch extension permissions—remove old extensions and deny wide-ranging access when possible, and don’t install wallet-looking plugins that come from dubious sources.
If you’re hunting for a browser wallet that balances UX and security, check out the okx wallet extension which has a straightforward interface and hardware wallet support.

Okay, so check this out—
Use a watch-only or view-only wallet to monitor expensive assets without exposing keys, and keep logs of contract addresses you interact with frequently.
On one hand automated approvals are convenient, though actually it’s safer to approve per-use when the amounts are meaningful.
I’m not 100% sure every collector will adopt these habits, but small safeguards like checking recipient addresses and using a hardware signer scale immediately.
It’s very very important to keep backups offline and to test recovery procedures before you need them…