diff --git a/epic-games.js b/epic-games.js
index 6e0b62c..82911ba 100644
--- a/epic-games.js
+++ b/epic-games.js
@@ -26,7 +26,8 @@ const context = await firefox.launchPersistentContext(cfg.dir.browser, {
   headless: cfg.headless,
   viewport: { width: cfg.width, height: cfg.height },
   userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.83 Safari/537.36', // see replace of Headless in util.newStealthContext. TODO Windows UA enough to avoid 'device not supported'? update if browser is updated?
-  // userAgent for firefox: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:106.0) Gecko/20100101 Firefox/106.0
+  // userAgent firefox (macOS): Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:106.0) Gecko/20100101 Firefox/106.0
+  // userAgent firefox (docker): Mozilla/5.0 (X11; Linux aarch64; rv:109.0) Gecko/20100101 Firefox/115.0
   locale: "en-US", // ignore OS locale to be sure to have english text for locators
   recordVideo: cfg.record ? { dir: 'data/record/', size: { width: cfg.width, height: cfg.height } } : undefined, // will record a .webm video for each page navigated; without size, video would be scaled down to fit 800x800
   recordHar: cfg.record ? { path: `data/record/eg-${datetime()}.har` } : undefined, // will record a HAR file with network requests and responses; can be imported in Chrome devtools