Abstract: Methods and systems for providing browser extension are disclosed. In some embodiments, the browser extension system includes a communication device in communication with a computing device and a networked system. The browser extension system also includes a processor configured to perform operations comprising: maintaining data associated with the computing device; detecting, through a browser extension application running on the computing device, a field in a web page associated with the networked system and provided by a web browser application running on the computing device; and in response to detecting the field: (i) automatically populating the field, through the browser extension application, with a secure token mapped to the data, (ii) detecting, through the browser extension application, a submission script associated with the web page, and (iii) automatically executing the submission script to submit the secure token through the browser extension application to the networked system.

Abstract: A networked system includes: a communication device configured to communicate with a computing device executing a browser extension application and a web browser application; a memory storing instructions; and a processor configured to execute the instructions to perform operations comprising: displaying, through the web browser application, a web page on the computing device, the web page being associated with a merchant and including a field requiring population; receiving, through the browser extension application, a secure token mapped to data corresponding to the field, the browser extension application being configured to: (i) detect the field, (ii) automatically populate the field with the secure token sufficient for a financial service provider system to authenticate, (iii) detect a submission script associated with the web page, and (iv) automatically execute the submission script to submit the secure token to the networked system; and transmitting the secure token to the financial service provider s