# What is an extension wallet? Extension wallet refers to a software that runs on a web browser (mainly Google chrome); It includes the basic operations of general wallets, such as transfers, authorization to call contracts, and import/export/create wallet accounts. The browser extension is a kind of light wallet. Like the APP, it does not need to synchronize the data of the whole node, and does not store the wallet information. All the private keys and passwords of extension wallets are held by the users themselves. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.tokenpocket.pro/es/blockchain-basics/plug-in.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.