diff --git a/epic-games.js b/epic-games.js
index 04a091e..d0b9a03 100644
--- a/epic-games.js
+++ b/epic-games.js
@@ -1,7 +1,7 @@
 import { firefox } from 'playwright-firefox'; // stealth plugin needs no outdated playwright-extra
 import { authenticator } from 'otplib';
 import path from 'path';
-import { existsSync, writeFileSync } from 'fs';
+import { existsSync, writeFileSync, appendFileSync } from 'fs';
 import { resolve, jsonDb, datetime, stealth, filenamify, prompt, notify, html_game_list, handleSIGINT } from './src/util.js';
 import { cfg } from './src/config.js';
 
@@ -16,6 +16,14 @@ const db = await jsonDb('epic-games.json', {});
 
 if (cfg.time) console.time('startup');
 
+const browserPrefs = path.join(cfg.dir.browser, 'prefs.js');
+if (existsSync(browserPrefs)) {
+  console.log('Adding webgl.disabled to', browserPrefs);
+  appendFileSync(browserPrefs, 'user_pref("webgl.disabled", true);'); // apparently Firefox removes duplicates (and sorts), so no problem appending every time
+} else {
+  console.log(browserPrefs, 'does not exist yet, will patch it on next run. Restart the script if you get a captcha.');
+}
+
 // https://playwright.dev/docs/auth#multi-factor-authentication
 const context = await firefox.launchPersistentContext(cfg.dir.browser, {
   headless: cfg.headless,