The Problem With Most Browser Extensions Browser extensions have a reputation problem. Many popular extensions — weather apps, new tab replacements, productivity tools — quietly collect your browsing data, sell it to advertisers, or require accounts that tie activity to your identity. When I built the Weather & Clock Dashboard for Firefox, I made a different choice: zero data collection, no acco
A few years ago I solved 200 LeetCode problems and still froze on Mediums I hadn't seen. The breakthrough wasn't another hundred problems. It was a different loop. A problem asks for the longest substring with at most K distinct characters. You've solved sliding window before. Maximum sum subarray of size K, done. Longest substring without repeating characters, done. This third one stalls you. Twe