Click the Bugzilla tab, then click on an existing bug report under "Related Bugs" and add a comment to the bug, or click "Thunderbird" to submit a new bug report.
Cliciwch y tab Bugzilla, yna cliciwch ar adroddiad gwall sy'n bodoli eisoes o dan "Related Bugs" ac ychwanegu sylw at y gwall, neu cliciwch "Thunderbird" i gyflwyno adroddiad gwall newydd.