Contract Software Engineer - DOM Core Firefox/Gecko

From the original posting

<h2><strong>The role</strong></h2> <p><span style="font-weight: 400;">You will help the Firefox DOM Core team improve the health of the Session History area. You will write tests to improve the coverage; you will fix tests and/or problems to improve the Gecko correctness.</span></p> <h2><strong>Responsibilities</strong></h2> <ul> <li style="font-weight: 400;"><span style="font-weight: 400;">Write Web-Platform tests to improve the coverage, and Gecko mochitests as…