| Index: test/browsers/firefox.js | 
| diff --git a/test/browsers/firefox.js b/test/browsers/firefox.js | 
| index 2aa18c13a58d435fac50cacd4ba4ffb58b792599..b2109eb99140b118be1bdfa568927689825b9ef3 100644 | 
| --- a/test/browsers/firefox.js | 
| +++ b/test/browsers/firefox.js | 
| @@ -23,6 +23,10 @@ const {Command} = require("selenium-webdriver/lib/command"); | 
| const {ensureFirefox} = require("../../adblockpluscore/test/runners/" + | 
| "firefox_download"); | 
|  | 
| +// We need to require the geckodriver, | 
| +// otherwise on Windows the geckodriver path is not added to process.env.PATH. | 
| +require("geckodriver"); | 
| + | 
| exports.platform = "gecko"; | 
| exports.oldestCompatibleVersion = "57.0"; | 
| exports.ensureBrowser = ensureFirefox; | 
|  |