Enhancing merchant databases using crowdsourced browser data

An electronic payment system comprising:

• one or more processors;
• and
• memory storing instructions that, when executed by the one or more processors, cause the electronic payment system to:
• install a browser extension to a first user device;
• receive, from the browser extension, information associated with a transaction conducted by a user via the browser extension, wherein the information comprises a trustworthy merchant name, and a user identifier associated with the transaction;
• update a merchant record in a private merchant database with the trustworthy merchant name based on a translation from a merchant identifier in a transaction record to the trustworthy merchant name in the information;
• determine a confidence level of the merchant record based on a number of merchant records in the private merchant database sharing an association between the merchant identifier and the trustworthy merchant name;
• based on a determination that the confidence level exceeds a threshold level, promote the merchant record to a trustworthy database;
• cause display of the trustworthy merchant name on a second user device;
• determine, via a browser installed with the browser extension, that the user navigates to a website that is associated with a merchant;
• store information associated with a second transaction in a local cache of the first user device;
• and
• based on a determination that the user has navigated away from the website without completing a checkout process, cause to delete the information associated with the second transaction from the local cache.

One or more non-transitory media storing instructions that, when executed by one or more processors, cause the one or more processors to perform steps comprising:

• installing a browser extension to a first user device;
• receiving, from the browser extension, information associated with a transaction conducted by a user via the browser extension, wherein the information comprises a trustworthy merchant name, and a user identifier associated with the transaction;
• updating a merchant record in a private merchant database with the trustworthy merchant name based on a translation from a merchant identifier in a transaction record to the trustworthy merchant name in the information;
• determining a confidence level of the merchant record based on a number of merchant records in the private merchant database sharing an association between the merchant identifier and the trustworthy merchant name;
• based on a determination that the confidence level exceeds a threshold level, promoting the merchant record to a trustworthy database;
• and
• causing display of the trustworthy merchant name on a second user device;
• determining, via a browser installed with the browser extension, that the user navigates to a website that is associated with a merchant;
• storing information associated with a second transaction in a local cache of the first user device;
• and
• based on a determination that the user has navigated away from the website without completing a checkout process, deleting the information associated with the second transaction from the local cache.