Install GMX Start for Chrome in order to utilize GMX Search as well as displaying your favourite websites in a new Chrome-Tab.
Visit the Download-Page.
Click on Add to Chrome.
Confirm by clicking on Add Extension.
The GMX Start for Chrome extension will be added in the background.
A pop-up window in Chrome will appear. Choose one of the following options:
Click on Change it back, if you wish to return to your standard-settings for opening a new Chrome-Tab. (a)
Click on Keep it, if you wish to use GMX Start for Chrome when opening a new Chrome-Tab. (b)
When choosing option (a), GMX Start for Chrome will not appear when opening new Chrome-Tabs. To cancel this process, once again navigate to the GMX Start for Chrome download page in the Chrome Web Store (step 1) and click on Remove from Chrome. Proceed by redoing steps 1 to 4 and choosing option (b) in step 4 to use GMX Start for Chrome.