Curiosity doesn’t kill the fox. It empowers it!
MetaMask introduces new user interface (UI) to speed up pending transactions in v4.12.0.
After you've submitted a transaction, MetaMask will display it (in reverse chronological order) in the “Queue” section.
In addition to expanding the tab to view transaction detail (including the new activity log), you may choose to
- Speed up
- Cancel the transaction
- View transaction on Etherscan
The “Confirm” screen would appear when you click to “speed up” your pending transaction.
Click “Edit” to customize gas. Then, you may specify the gas price and gas limit, and click “Save”
MetaMask will direct you to the “Confirm” page again. Click “Confirm” to send the transaction.
You’ll see a new pending transaction with the same nonce/transaction number displayed in the queue.
When one is confirmed, the other pending transaction with the same nonce will be dropped.
Since the mining/validating network will process pending transactions in the order of their submission, this option to speed up pending transactions on MetaMask new UI will only be limited to the first pending transaction.
Note: We will update this article if the current UI is refined in coming days, or in newer versions.