January 2026

If Firefox on macOS enters the system’s standard fullscreen mode and you find it annoying that pressing the Esc key exits fullscreen, this article explains how to prevent that by changing `browser.fullscreen.exit_on_escape` to `false` in `about:config`. Exiting fullscreen via F11 or the menu remains available.

Since Chromium M113, `--remote-debugging-address=0.0.0.0` is forcibly remapped to 127.0.0.1, blocking external CDP connections. Workaround: forward 9222 to 127.0.0.1:9223 with `socat`.

If you want Git to ignore local changes to files that are already tracked, use `git update-index --skip-worktree` rather than `.gitignore`. This article explains how to set it up, how to undo it, how to list skipped files, the differences from `assume-unchanged`, and what to do when pulling.

Extract `.event.delta.text` from Claude Code's `--output-format=stream-json` using `jq -j` to avoid the per-fragment newline issue with `jq -r`. Includes a working one-liner.