GitLab MR Approval Guard is a free browser extension designed for Chrome that enhances the GitLab workflow by ensuring that merge requests receive at least one approval before proceeding. This tool adds a visible banner at the top of the merge request page, effectively blocking the merge button until the necessary approval is obtained. It serves as a practical safeguard, helping teams avoid premature merges that could jeopardize code quality.

The extension promotes best practices by reminding contributors to seek reviews from team members, share changes in relevant communication channels, and involve DevOps when necessary. Additionally, it allows customization of branch protection settings directly within team browsers, ensuring adherence to team policies without altering GitLab server configurations. This functionality not only reduces human error but also fosters collaboration, ultimately leading to improved code quality and fewer production issues.