Adobe Flash Player was retired by Adobe and major browser vendors since the beginning of 2021. By the time of 2025, major browsers (Chrome, Edge that works on Chromium core, and Safari) all DON’T support Flash. Which makes some interactive operations inapplicable.
But if you ever have the misfortune to still need the Flash function. Here’s how to do it (works on Mac, guess similarly you can make it work on Windows too). Key is to (i) download older version of Chrome that still supports Adobe Flash Player (ii) download Adobe Flash Player and (iii) manually run older version of Chrome with Adobe Flash Player.
Download older version of Chrome
Download historical Chromedriver ver. 87 (only <88 versions support Flash).
Go to this official depository of historical Chrome versions that contain our desired version: https://commondatastorage.googleapis.com/chromium-browser-snapshots/index.html?prefix=Mac/827102/. -> Download
chrome-mac.zip.
Unzip the package, find and move Chromium.app to /Applications folder (DON’T miss our the / before Applications).
Download Flash Player
Here in the official site for flash download: https://www.flash.cn/download. Download and install “Adobe Flash Player PPAPI” that supports browser version below 88.
Run older version of Chrome with Adobe Flash Player
First, cause both Chromedriver and Flash are downloaded from web, Apple often refuses to open them. Open System Settings.app->Privacy and Security and grant both apps rights to open. (Google how-tos if you got system refuse-to-open pop-ups).
Then, simply run the following in terminal:
/path_to_chromium/Chromium.app/Contents/MacOS/Chromium --enable-plugins --allow-outdated-plugins --ppapi-flash-path=/path_to_flash/Internet\ Plug-Ins/PepperFlashPlayer/PepperFlashPlayer.plugin
path_to_chromium will be /Applications. The path_to_flash is usually /Library. Finally, it’s like
/Applications/Chromium.app/Contents/MacOS/Chromium --enable-plugins --allow-outdated-plugins --ppapi-flash-path=/Library/Internet\ Plug-Ins/PepperFlashPlayer/PepperFlashPlayer.plugin
After the command, a virtual chrome should open that works with flash. (You probably need to manually open Chrome settings again to grant Flash for specific website, but that is click-able anyway).
Good luck!