Install Slack on Ubuntu 24.04: Snap, Deb or Flatpak

Last updated: October 8, 2026

The quickest way to install Slack on Ubuntu 24.04 is sudo snap install slack, which is also what the App Center installs. Slack also offers a .deb download from its website, and Flathub carries Slack as com.slack.Slack for Flatpak users. Pick one method only; two Slack builds side by side cause duplicate launchers and notifications.

Method	Install command	Update	Remove
Snap / App Center	sudo snap install slack	Automatic, or sudo snap refresh slack	sudo snap remove slack
.deb from slack.com	sudo apt install ./slack-desktop-*-amd64.deb	Download the new .deb and install it the same way	sudo apt remove slack-desktop
Flatpak (Flathub)	flatpak install flathub com.slack.Slack	flatpak update com.slack.Slack	flatpak uninstall com.slack.Slack

What was checked (8 Oct 2026). The Flatpak command syntax was checked against flatpak --help output for Flatpak 1.14.6, the version in Ubuntu 24.04’s repository. The Snap and .deb steps were not re-run for this update, and the screenshots are from the original version of this guide. See Slack’s own overview if you are new to the app.

How to Install Slack on Ubuntu 24.04

Method	Source	Auto-updates	Notes
App Center	Snap store (via GUI)	Yes	Easiest, no terminal needed
Snap	Snap store	Yes (snap refresh)	One command
deb file	slack.com	No	Latest official build
Flatpak	Flathub	Yes (flatpak update)	Flatpak ecosystem

Method 1: Install Slack on Ubuntu 24.04 Using the App Center

Slack is officially available in Ubuntu 24.04’s App Center. The App Center carries most desktop apps, including Skype on Ubuntu 24.04 if your team uses it too. Open the App Center and search for Slack:

Select the Slack version to install. You can choose beta (may contain bugs) or stable. Click the Install button to proceed:

Note: You can also update Slack from Ubuntu 24.04’s App Center.

Method 2: Install Slack on Ubuntu 24.04 Using Snap

Snap bundles all dependencies into a single package. Install Slack with one command:

sudo snap install slack

Verify the installation:

slack -v

To launch Slack via Snap:

snap run slack

To update Slack installed via Snap:

sudo snap refresh slack

Method 3: Install Slack on Ubuntu 24.04 Using the .deb File

Slack provides an official .deb file for Debian-based distributions. This is the same pattern used to install Google Chrome on Ubuntu 24.04. Navigate to the official Slack website and download the .deb file:

Go to your Downloads folder, confirm the file name, and install it. The wildcard matches whatever version you downloaded; the screenshot shows version 4.36.140 from the original guide, which is older than what Slack offers now:

cd ~/Downloads
ls slack-desktop-*.deb
sudo apt install ./slack-desktop-*-amd64.deb

Tip: Use sudo apt install ./file.deb rather than sudo dpkg -i file.deb. The apt form resolves missing dependencies automatically, while dpkg will stop and leave the package half-configured if a dependency is absent.

To launch Slack, use the Activities menu or run:

slack

To update the .deb build, download the newer .deb from Slack’s site and install it with the same sudo apt install ./slack-desktop-*-amd64.deb command. Check whether the package also set up an APT source with ls /etc/apt/sources.list.d/; if a Slack entry is there, sudo apt update && sudo apt upgrade updates it too.

Method 4: Install Slack on Ubuntu 24.04 Using Flatpak

Flathub is the main repository for Flatpak apps. Ubuntu 24.04 does not ship Flatpak by default, so install it first if flatpak --version reports “command not found”:

sudo apt install flatpak

Step 1: Add the Flathub Repository

flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo

You can skip the command shown in the next screenshot (sudo flatpak install flathub with no app name); it is not needed, because step 2 names the app to install.

Step 2: Install Slack

flatpak install flathub com.slack.Slack

To update Slack installed via Flatpak:

flatpak update com.slack.Slack

To run Slack installed via Flatpak:

flatpak run com.slack.Slack

How to check which Slack build is installed

Because Slack can come from Snap, a deb package, or Flatpak, confirm which one is active before troubleshooting anything. Each package format has its own listing command:

snap list slack
apt list --installed 2>/dev/null | grep slack
flatpak list | grep -i slack

If more than one command returns a result, you have duplicate installations. That is the usual cause of two Slack launchers in Activities, notifications arriving twice, or settings that appear to reset between launches. Remove all but one build before troubleshooting further.

Troubleshooting Slack on Ubuntu 24.04

Problem	Likely cause	Fix
Screen sharing unavailable or shares a black window	Wayland session	Log out and sign in using Ubuntu on Xorg
No desktop notifications	Disabled in Slack or GNOME	Enable in Slack Preferences and GNOME Settings > Notifications
Tray icon missing	GNOME has no legacy tray	Install the AppIndicator GNOME extension
Links open in the wrong browser	Default browser not set	Set it with xdg-settings
Two Slack icons in Activities	Two package formats installed	Remove the duplicate build
slack command not found	Installed via Flatpak	Launch with flatpak run com.slack.Slack

Screen sharing does not work

Ubuntu 24.04 uses Wayland by default, and Slack’s screen capture was built around X11. Check which session you are running:

echo $XDG_SESSION_TYPE

If the output is wayland, log out, click the gear icon on the login screen, and choose Ubuntu on Xorg before signing back in. Screen sharing then behaves the same way it does on other desktops.

Notifications do not appear

Check both sides of the notification chain. In Slack, open Preferences > Notifications and confirm delivery is enabled. In Ubuntu, open Settings > Notifications and make sure Slack is allowed to send them and that Do Not Disturb is off.

The tray icon is missing

GNOME does not display legacy tray icons on its own, so Slack disappears completely when you close the window. Installing the AppIndicator extension restores it:

sudo apt install gnome-shell-extension-appindicator

Log out and back in after installing so GNOME loads the extension. Slack will then minimise to the top bar instead of exiting.

Links open in the wrong browser

Slack hands links to whatever Ubuntu has registered as the default browser, which also affects the sign-in handoff when you join a workspace. Set it explicitly:

xdg-settings set default-web-browser firefox.desktop

Replace firefox.desktop with google-chrome.desktop if you prefer Chrome. If neither browser is present yet, our guides cover how to install Firefox on Ubuntu 24.04 first.

How to Remove Slack on Ubuntu 24.04

Install method	Remove command
App Center or Snap	sudo snap remove slack
deb file	sudo apt remove slack-desktop
Flatpak	sudo flatpak remove com.slack.Slack

If you installed Slack using App Center or Snap:

sudo snap remove slack

If you installed Slack from the .deb file:

sudo apt remove slack-desktop

To remove Slack installed via Flatpak. flatpak uninstall takes only the app ID, not the remote name, so the flathub argument used in the original version of this guide is not part of the command:

flatpak uninstall com.slack.Slack

Removing the package leaves your local Slack profile in place. To clear cached workspace data as well, delete the configuration directory that matches your install: ~/snap/slack for Snap, ~/.config/Slack for the deb build, or ~/.var/app/com.slack.Slack for Flatpak.

Before signing in to Slack

Sign in with your workspace URL or the email invitation. If the sign-in page opens in the wrong browser, fix the default browser as shown in the troubleshooting section above. Other desktop apps install the same three ways, for example VLC on Ubuntu 24.04 and Visual Studio Code on Ubuntu 24.04.