Starting on January 1 2019, Steam will officially stop supporting macOS versions 10.7 ('Lion'), 10.8 ('Mountain Lion'), 10.9 ('Mavericks') and 10.10 ('Yosemite'). This means that after that date the Steam Client will no longer run on those versions of macOS.
How to change your default web browser
They brought Steam, including every feature to the MAC. They brought us cross-buy, cross-save, cross-play, etc. They encourage developers and publishers to bring games to the MAC(currently 2,443. Mac’s version is a bit more systemwide, with some older Windows dialogs still not darkened. The Windows 10 May 2019 Update adds a Custom option, which lets you decide whether you want dark. There are several options that will allow you to keep playing your 32-bit Mac apps. The good news is we have Steam Play, which means that when you purchased your game on Steam you get a copy of this game on each OS that game supports. You will still be able to play these games on macOS 10.14 Mojave and earlier, Windows and in many cases Linux. Count It even has built-in support for finding and adding games from Steam, GOG Galaxy, MacGameStore, and Battle.net that are already installed on your Mac. To add a game from a supported third-party client, use the “Platform” option from the “Add” menu (“+” symbol in bottom left corner).
- Make sure that the other web browser is installed.
- Choose Apple menu > System Preferences, then click General.
- Choose a web browser from the ”Default web browser” menu.
How to change your default email app
- Make sure that the other email app is installed. Although you might be able to use a web browser for email (webmail), a web browser isn't an email app.
- Open the Mail app.
- Choose Mail > Preferences, then click General.
- Choose an email app from the ”Default email reader” menu.
Steam Client For Mac Os X64
You might be prompted to add an email account before you can change the setting in Mail. If you don't want to do that, check the preferences of the other email app. You might be able to set a default email app from there.
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Steam Client For Mac Os X 10.6
Change the default web browser or email app on iPhone, iPad, or iPod touch.