Bitcoin Block Explorer (extension)

Bitcoin Block Explorer allows you to search for information about the blocks, addresses, and transactions in the Bitcoin blockchain. It is a Firefox browser extension.

From the Blockexplorer site: You can enter all or part of a block number, address, block hash, transaction hash, hash160, or public key. Input must be at least 6 characters long. Hashes are expressed in hexadecimal.

External Links

See Also on BitcoinWiki