Subreddit Activity Lens

Update (2026-02-24): Reddit now fully hides comment history for hidden profiles. The extension still shows recent posts where available, but comment activity for hidden profiles may be unavailable until an alternative is provided. Subreddit Activity Lens adds a quick activity snapshot next to Reddit usernames, so you can get context at a glance while browsing. What it shows - Top subreddits a user has been active in over the last 30 days - Posts and comments counts per subreddit (as badges) - One-click links to the user’s recent posts and comments Why install - Faster "who am I replying to?" context without leaving the page - Quickly jump to a user’s activity in a specific subreddit - Helpful for filtering signal vs noise in large threads Controls - Auto-scan on/off - Manual "Scan" when auto-scan is off - Hide badges (pauses scanning) Privacy - Runs locally in your browser on reddit.com (no remote server). - Does not collect, track, sell, or share your personal data. - No accounts, no sign-up. - Not affiliated with Reddit.