What caused the sudden 30% decrease in daily active users for Glean's browser extension last week?

Introduction

The sudden 30% decrease in daily active users for Glean's browser extension last week is a critical issue that demands immediate attention and thorough analysis. As we dive into this problem, we'll employ a systematic approach to identify, validate, and address the root cause while considering both short-term fixes and long-term strategic implications.

Step 1

Clarifying Questions (3 minutes)

• Looking at the timing, I'm thinking this could be related to a recent update. Has there been any recent deployment or change to the browser extension?

Why it matters: Recent changes often correlate with sudden metric shifts. Expected answer: Yes, there was an update last week. Impact on approach: If confirmed, we'd focus on the update's contents and rollout process.

• Considering user segments, I'm wondering if this decrease is uniform across all user groups. Can you provide a breakdown of the DAU decrease by user segments (e.g., new vs. existing users, different browsers)?

Why it matters: Segmentation helps identify if the issue is localized or widespread. Expected answer: The decrease is more pronounced in Chrome users and new users. Impact on approach: We'd prioritize investigating Chrome-specific issues and onboarding flows.

• Given the magnitude of the drop, I'm curious about any corresponding spike in error rates or crash reports. Have there been any notable increases in technical issues reported by users or logged in our systems?

Why it matters: Technical issues often lead to decreased usage. Expected answer: There's been a 50% increase in error reports related to search functionality. Impact on approach: We'd focus on the search feature and its recent changes or dependencies.

• Thinking about external factors, I'm considering if there have been any changes in the competitive landscape. Have any major competitors released new features or updates recently?

Why it matters: Competitive moves can impact user engagement. Expected answer: No significant competitor updates noted. Impact on approach: We'd focus more on internal factors rather than market dynamics.