Filling field on user interface based on content of message

A non-transitory computer-readable storage medium comprising instructions stored thereon that, when executed by at least one processor, are configured to cause a computing system to at least:

• generate, by a browser application based on Hypertext Markup Language (HTML) code including an input element defining an input field for text input and a name attribute, a webpage in association with a user account, the webpage including the input field via which the name attribute receives a value;
• detect the input field based on the HTML code including the input element;
• based on detecting the input field, determine, by the browser application, a content type of the input field based on the name attribute included in the HTML code;
• search, by a messager application, messages stored in association with the user account for a text string associated with the content type of the input filed, wherein the searching messages includes searching for the text string adjacent to text that matches the determined content type;
• and
• fill, by the browser application, the input field with the text string.