There's yet another flaw in the Adobe Flash Player browser plugin that needs to be urgently patched.
The good news is that Google Chrome, Microsoft Internet Explorer 10 and 11, and Microsoft Edge will update themselves automatically. The bad news is that Mozilla Firefox, Apple Safari, Opera and Internet Explorer 9 or earlier will need the user to go to https://get.adobe.com/flashplayer/and install the patch manually.
Alternately, you could just disable Flash Player entirely. Unless you're playing kids' games online, you probably don't need it, and nixing it will save you from viewing a lot of online ads. You'll be a lot safer, because a large chunk of the malware attacking web browsers worldwide is dependent on Flash Player flaws.
(If you still need Flash, then please set it to run only when you decide to let it run. Here's our piece explaining how to set Adobe Flash Player to click-to-run.)
How to disable Adobe Flash Player
1. Type "chrome://plugins" into a new browser tab and hit Enter or Return.
2. Click the Disable link under Adobe Flash Player.
Microsoft Internet Explorer
1. Click the gear icon at the top right of the browser window.
2. Scroll down to and click Manage add-ons.
3. Select Shockwave Flash Object.
4. Click Disable.
1. Click the stacks icon at the top right of the browser window. (Or type "about:addons" into a new browser tab.)
2. Scroll down to and click Add-ons.
3. Scroll down to Shockwave Flash and change the setting to Never Activate.
1. Click Safari in the menu bar.
2. Scroll down to Preferences and click.
3. Click the Security tab in the pop-up window.
4. Click the second Website Settings button, next to Allow Plug-ins.
5. Select Adobe Flash Player.
Our Safari installation didn't have the Flash plug-in, which is probaby a good thing.6. Select Block.
7. Click Done.
1. Type "opera:plugins" into a new browser tab and hit Enter or Return.
2. Scroll down to Shockwave Flash and click Disable.