The Salesforce Test Coverage Viewer is a Chrome extension tailored for Salesforce developers and administrators, facilitating the monitoring of Apex test coverage and results. Key features include the ability to fetch and display detailed coverage reports for Salesforce classes and triggers, showcasing lines covered, uncovered, and the overall coverage percentage, which aids in maintaining code quality.

Additionally, users can execute specific test suites or run all tests directly from the extension while monitoring their progress in real-time. The extension also offers interactive visualizations of test data through pie and doughnut charts, making it easier to identify classes with varying coverage levels. Furthermore, it provides detailed reports on test failures, including error messages and stack traces, enhancing the analysis of issues within the code.