Chrome browser provides feature to take full page screenshot of the webpage. So no need to download the chrome extensions. In order to take the screenshot of the webpage, follow the steps
Open the developer tools menu
You can open the developer tools menu by clicking
cmd+option+c in mac and
ctrl+shift+c in windows, linux and chromeOS
You can also open the developer tools menu by right click on the webpage, and select "Inspect"
Once the developer tools is opened, you will see something like this
Toggle the device toolbar
When you toggle the device toolbar as shown below, it will open up the toolbar where you can select various resolutions and device mode - Desktop/Mobile/Desktop Touch
Then click on the vertical three dots which will open the menu like shown below
There you have the option to select
- Capture screenshot
- Capture full page screenshot
You can also change the device type to different mobiles like iphone or pixel, or to tablets like ipad (with landscape and potrait mode).