Can’t take Screenshot of some Apps on Android - How to Fix it

Reason 1: You’re in Chrome Incognito Mode or Firefox Private browsing mode

Enable screenshot in Chrome incognito mode:

1. In Chrome, enter “chrome://flags” into an address bar.
   
2. On the Chrome flags screen, enter “Incognito Screenshot” into the search box, if available, the Incognito Screenshot option will display in the results.
   
3. Click on the pull-down menu underneath it, then select Enabled.
   
4. For these changes to take effect, click on Relaunch toward the bottom of the right corner.

Enable screenshot in Firefox Private browsing mode:

1. Tap on the three-dotted Firefox settings menu.
   
   
2. Then, choose Settings - Private browsing.
   
3. Next, toggle on the Allow screenshots in private browsing option.
   

Reason 2: Phone Restrictions

If the Android phone was issued to you by some companies, they might have set a policy that prevents you from taking screenshots. 

1. You can ask your company IT manager to enable the screenshot function on your phone.
2. And in the case of company accounts added to your phone.

• Go to the Settings on your Android device.
• Open Accounts.
• Remove the account enforcing such a policy.

Reason 3: App Restrictions

There are some apps that, when opened, don’t allow the user to take screenshots. This usually includes apps related to banking, investments, and finances. 

Here is a list of know apps that don't allow screenshots:

• Firefox Focus
• Bank apps