So, in Google Play store, you cannot Flash Player app.
Chrome for Android never supports Flash player from day one, although Flash player is fully supported in Chrome browser on your PC.
When you get a device with Android Lollipop (Android 5.0), or update your device to Android Lollipop, it is normal that you cannot browse websites that require Flash.
But this does not mean you cannot enable Flash Player on Android Lollipop.
Actually, it is very simple to enable Flash player on Android Lollipop devices. It is simpler than that on Android KitKat 4.4 (see this guide on how to enable Flash Player on KitKat 4.4) and Android Jelly Bean 4.1-4.3 devices (see this guide on how to enable Flash Player on Jelly Bean).
Of course, you need a third-party web browser, not the pre-installed Chrome for Android.
Step 1: Install a file manager if you are using Nexus or Motorola devices
Nexus devices (Nexus 4, Nexus 5, Nexus 6, Nexus 7, Nexus 9 and Nexus 10) and Motorola devices (Moto X, Moto G, Moto E, Moto G 2nd Gen and Moto X 2nd Gen) do not have a file manager pre-installed.
It is recommended (not absolutely required) to install a file manager so that it will make your life easier to enable Flash player on Android Lollipop later.
For file managers, I would recommend ES File Explorer. It is free and has almost all features you will need.
You can install ES File Explorer as normal apps from Play store.
For the installation and basic usage of ES File Explorer, you may check this guide.
Step 2: Enable apps from unknown sources
Because the official Flash Player was pulled out from Play store, you cannot install the app directly from Google Play store.
But Adobe still maintains and actually updates the Flash Player app regularly. So, you can still get the official Flash Player app from the official source. You should NEVER try to get such apps from other sources.
For apps that are not from Google Play store, your Android Lollipop device will treated them as “from unknown sources”.
By default, apps from unknown sources are disabled in all Android devices for security reasons (to protect your Android devices).
To install Flash Player on Android Lollipop, you need enable this feature. You should trust Adobe for the app.
Go to Settings—Security (under Personal) —Unknown sources (under Device administration) as shown below.
Drag the switch from left to right to enable unknown sources.
You should get the waning messages about the possible effects of enabling unknown sources. It is important to get apps only from trusted sources. Never try to install pirated apps on your devices. It not only is illegal, but also may cause damages to your data or your device.
Tap OK to proceed to enable apps from unknown sources, because we know Adobe is a trusted app provider.
Once Unknown sources is enabled, the switch will change to blue color as shown below.
Step 3: Install official Flash Player on Android Lollipop devices
In your Android Lollipop device, visit the official Flash player app download page: http://helpx.adobe.com/flash-player/kb/archived-flash-player-versions.html
In this page, scroll down to Flash Player for Android 4.0 archives as shown below. Please don’t be fooled by the Android version. The apk files here work perfectly on Android Lollipop 5.0.
The APK files actually are updated by Adobe regularly. So, the latest version (shown on the top) may be different when you visit this page later. Currently, the latest version is 18.104.22.168.
So tap the link for latest APK file as shown below.
Your Android phone or tablet should start to download the APK file (Flash Player app) immediately.
Once the download is started, you can find the notification message as shown below.
In some Android phones/tablets, you can tap the notification message to start the installation. But for some other devices, it may not work.
So, it is best to start ES File Explorer or any file manager you have on your Android Lollipop device.
Navigate to the Download folder in the internal phone storage as show below.
Tap the file to get the properties of the APK file as shown below. Tap Install.
On some devices, tap the APK file will bring you to the installation page immediately without showing the Properties page.
Now, you get the normal warning messages about the permission the app is requesting.
For Flash Player, it only need access network connection to view Flash contents. So, it is very clean.
Tap Install as shown below to start to install Flash Player on Android Lollipop devices.
After one or two mins, the installation should finish.
Tap Done to close the installer.
Step 4: Install third-party browser (Firefox for Android)
Chrome for Android (which is the default browser in some Android Lollipop devices) does not support Flash at all. So, if a website is using Flash, you have to use other web browsers.
There are many excellent free web browsers that support Flash. I would recommend you to try Firefox for Android or Dolphin browser. In this guide, I will use Firefox.
Firefox for Android can be installed just like other apps from Play store. I believe you know how to do it already.
Step 4A: Run Flash player settings once
You can find an app named Flash Player Settings in your apps screen.
Tap the Flash player settings as shown below.
You will be asked to select an browser to proceed, choose Firefox as shown below.
If your phone open it directly to other browsers, it means you set that browser app as the default browser. You need clear the default app settings for that app.
Once you are directed to Firefox browser, tap local storage as shown above.
The choose Always or only from sites visit for “Allow local storage?” as shown above.
Step 5: Enable Flash Player on Android Lollipop devices
Firefox for Android supports Flash Player out of box. But by default, you need tap to enable Flash player and then the Flash contents will be displayed properly.
You can enable Flash Player in Firefox so that Flash contents can be played automatically without manually tapping the screen.
Start Firefox on your Android Lollipop device.
Tap the menu key (3 vertical dots in top right) as shown below.
Tap Settings—Display as shown below.
Tap Plugins as shown below.
Tap Enabled as shown below.
Tap anywhere on the shaded area to return.
Now, the Firefox browser will play Flash contents automatically. In other words, you enabled Flash Player on Lollipop device now.
Step 6: Verify Flash Player on Android Lollipop devices
It is always a good idea to test Flash Player on Android Lollipop devices.
To verify whether Flash Player works on Android device, you can visit (using Firefox, NOT Chrome) the official Flash testing page at: http://helpx.adobe.com/flash-player.html
If you can see the animation as shown below, it means Flash player works properly in your Android Lollipop device.
However, if you see Tap here to activate plugin (as shown below), it means you need go back to Step 5 if you want your Android Lollipop devices play Flash contents automatically.
Step 7: Disable apps from unknown sources
After testing Flash Player on Android Lollipop devices, you should disable apps from unknown sources to protect your phone.
This step is similar to Step 2. Go to Settings—Security —Unknown sources. Drag the switch from right to left to disable apps from unknown sources for your Android Lollipop devices.
Can you enable Flash Player on Android Lollipop device now?
If you have any questions or encounter any problems to enable Flash Player on Android Lollipop, please let us know in the comment box below.
For more Android Lollipop guides, please visit on Android Lollipop Guide page.