Solution 1: On Facebook click the “Home” button in the top right of the page, and proceed to press the “Q” key on your keyboard.
Solution 2: In Google Chrome, disable your ad-blocker or add it to your ad-blocker settings with adding this to your filters: @RPNcr3s-aD2.js$script,domain=facebook.com
Solution 3: The Messenger can be cut out when the zoom is set too high, to check the Zoom setting on your browser:
How to Change Zoom in Your Browser:
Google Chrome: Click the three dots in the top right corner of the browser. In the area next to Zoom you will see a (+), a (-) and a %, if your Zoom is set to more than 100% reducing it to 100%.
Firefox: Is very similar to Google Chrome. Click the three horizontal lines in the top right corner of the browser. In the area next to Zoom you will see a +, a – and a %, if your Zoom is set to more than 100%.
Safari: In Safari To increase the zoom level, press Command & Plus sign (+). To decrease the zoom level, press Command & Minus sign (-), or go to the View menu and select Zoom in or Zoom out.
Microsoft Edge: Click the three dots in the top right corner of the browser. In the area next to Zoom you will see a (+), a (-) and a %, if your Zoom is set to more than 100% reducing it to 100%.
Internet Explorer: In the top right corner click the Gear icon. You will get a drop down menu hovering over Zoom will give you options for the Zoom %.