History Helper is a Firefox extension designed to improve the user experience when searching through browser history. It addresses the limitations of the default history viewer by allowing users to search by title or URL, set visit counts, and define date ranges. This flexibility enables users to refine their searches with multiple terms and even exclude certain keywords, resulting in more accurate results.

Unlike the default viewer, which breaks down queries into individual terms, History Helper allows for whole phrase searches. For instance, a search for "star wars" will yield results containing that exact phrase. The extension also provides options for searching within page titles or URLs specifically, and it supports regular expression matching, enhancing the overall search capabilities for users.