A lightweight, dependency-free mutex for Userscripts that ensures **only one tab / context** runs a critical section at a time. It coordinates through `GM.setValue` + `GM_addValueChangeListener`, so it works across multiple tabs, iframes, and even separate scripts that share the same @name/@namespace storage.
| 日期 | 安装次数 | 更新检查总次数 |
|---|---|---|
| 2025-11-01 | 0 | 0 |
| 2025-11-02 | 0 | 0 |
| 2025-11-03 | 0 | 0 |
| 2025-11-04 | 0 | 0 |
| 2025-11-05 | 0 | 0 |
| 2025-11-06 | 0 | 0 |
| 2025-11-07 | 0 | 0 |
| 2025-11-08 | 0 | 0 |
| 2025-11-09 | 0 | 0 |
| 2025-11-10 | 0 | 0 |
| 2025-11-11 | 0 | 0 |
| 2025-11-12 | 0 | 0 |
| 2025-11-13 | 0 | 0 |
| 2025-11-14 | 0 | 0 |
| 2025-11-15 | 0 | 0 |
| 2025-11-16 | 0 | 0 |
| 2025-11-17 | 0 | 0 |
| 2025-11-18 | 0 | 0 |
| 2025-11-19 | 0 | 0 |
