Multi Tab Grid by lumiaxth

Features
- Bulk open: open the current tab's URL (or a custom URL) 1~16 times as separate windows
- Grid tiling: windows are precisely positioned into an approximate square grid — 1~3 in a single row, 4 → 2×2, 6 → 3×2, 9 → 3×3, etc.
- Tile all tabs: tile every tab of the current window (http/https only, up to 16); the original window is closed when everything is tiled, or kept when special pages (e.g. about:) are skipped
- Auto web fullscreen for Bilibili Live: a global switch (off by default).
- Close original tab option: only closes the source tab when the URL matches what was opened
- Close group: one click to close all windows opened by the extension
- Settings memory: last URL, count and switches are remembered and shown for confirmation each time
- Maximize hint: shown when the window is not maximized
- i18n: English and Simplified Chinese, auto-follows the browser language