mattermost/desktop

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Mattermost Desktop application for Windows, Mac and Linux

Stars: 2.3k
Forks: 980
Open beginner issues: 0
Indexed issues: 34
Avg merge: 1d 5h
Merged PRs (30d): 30

Dominant language: TypeScript
License: Apache-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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34 open issues indexed

[Bug]: Loading screen stays on top of a fully loaded tab (new tab / Ctrl+R) until switching tabs Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

mattermost/desktop#3994 · Opened Sep 14, 2026
[Bug]: Text overlaps in Threads view on Windows 11 at 200% display scaling Open

Cannot Reproduce Windows

Difficulty 4/5 3-5 days Newbie friendliness 48/100

mattermost/desktop#3980 · 1 comment · Opened Sep 5, 2026
[Bug]: Notifications not working on macOS, versions 6.3.0 and 6.2.3, works in 6.2.2 Open

Cannot Reproduce Type/Bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

mattermost/desktop#3963 · 7 comments · Opened Aug 25, 2026
[Bug]: Mattermost tray icon missing on Ubuntu 26.04 in 6.3.0, shows in 6.2.2 Open

Type/Bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

mattermost/desktop#3954 · 5 comments · 1 reaction · Opened Aug 20, 2026
[Bug]: Inline PDFs render as a black page in Desktop 6.3.0 but work in 6.2.2 Open

Difficulty 4/5 3-5 days Newbie friendliness 58/100

mattermost/desktop#3952 · 3 comments · Opened Aug 19, 2026
[Bug]: Desktop 6.2.2 not compatible with packaged calls plugin on MM Server 11.9.0 Open

Type/Bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

mattermost/desktop#3924 · 2 comments · Opened Jul 31, 2026
[Bug]: Maximized app, the link URL is being cutted. Open

Type/Bug Windows

Difficulty 3/5 1-2 days Newbie friendliness 48/100

mattermost/desktop#3881 · 1 comment · Opened Jul 3, 2026
[Bug]: Desktop client marks downloaded files as downloaded from the Internet on Windows (`ZoneId=3`) Open

Type/Bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

mattermost/desktop#3871 · 2 comments · Opened Jun 26, 2026
Renderer process crashes on copy/paste on Wayland (Linux Flatpak) Open

Cannot Reproduce Linux Type/Bug Wayland

Difficulty 4/5 3-5 days Newbie friendliness 42/100

mattermost/desktop#3820 · 1 comment · Opened May 12, 2026
[Bug]: Server URL in the Desktop-Client is overwritten by SiteURL configured at server Open

Type/Bug

Difficulty 3/5 1-2 days Newbie friendliness 48/100

mattermost/desktop#3811 · 1 comment · Opened May 7, 2026
[Bug]: Allow user installs on Windows Open

Type/Bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mattermost/desktop#3740 · 2 reactions · Opened Mar 20, 2026
[Bug]: Customized source code Open

Type/Bug

Difficulty 5/5 Over a week Newbie friendliness 15/100

mattermost/desktop#3724 · Opened Mar 13, 2026
[Bug]: Mattermost Windows v6.0.4 Stuck on Blue Loading Screen (Server 11.3.0) Open

All Platforms Type/Bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mattermost/desktop#3712 · 16 comments · Opened Mar 3, 2026
All servers gone (update 6. 1.0.) Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

mattermost/desktop#3713 · 1 comment · Opened Mar 3, 2026
[Bug]: Window overlaps on multiple monitors Open

Type/Bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

mattermost/desktop#3582 · 3 comments · Opened Nov 20, 2025
[Bug]: Unicode emojis not displaying Open

Cannot Reproduce Type/Bug Windows

Difficulty 4/5 3-5 days Newbie friendliness 38/100

mattermost/desktop#3579 · 3 comments · Opened Nov 18, 2025
[Bug]: 6.0.0 fails to show window on Ubuntu 24.04 with some Wayland configurations Open

Electron Linux Type/Bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

mattermost/desktop#3559 · 18 comments · 5 reactions · Opened Nov 14, 2025
[Bug]: mattermost-desktop: undefined symbol: cupsFreeDestInfo Open

Type/Bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mattermost/desktop#3414 · Opened Apr 29, 2025
[Bug]: update apt sources Open

Linux Type/Bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mattermost/desktop#3304 · 1 comment · 3 reactions · Opened Jan 29, 2025
[Bug]: Can't trust custom Certificate Authority, only the self signed certificate Open

Type/Bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mattermost/desktop#3287 · 8 comments · Opened Jan 23, 2025
[Bug]: Fullscreen size but not fullscreen, after restart of app Open

Type/Bug Windows

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mattermost/desktop#3285 · 4 comments · 1 reaction · Opened Jan 21, 2025
[Bug]: File upload with drag & drop not working (randomly) on GNOME with Wayland Open

Linux Type/Bug

Difficulty 4/5 3-5 days Newbie friendliness 32/100

mattermost/desktop#3268 · 3 comments · Opened Dec 23, 2024
[Enhancement]: Unread Notifications Not Cleared on Gnome Desktop After Reading Messages in Mattermost Open

Type/Enhancement

Difficulty 4/5 3-5 days Newbie friendliness 48/100

mattermost/desktop#3230 · 4 comments · 15 reactions · Opened Nov 27, 2024
[Bug]: Desktop client does not connect to server with auto-launch on startup + auto-launch minimized Open

Linux Type/Bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mattermost/desktop#3212 · 17 comments · Opened Nov 19, 2024
[Bug]: Mattermost window size are not restored on a high DPI secondary monitor Open

Type/Bug Windows

Difficulty 3/5 1-2 days Newbie friendliness 45/100

mattermost/desktop#3209 · 4 comments · Opened Nov 18, 2024
[Bug]: Autostart starts electron on EndeavourOS Linux Open

Type/Bug

Difficulty 3/5 1-2 days Newbie friendliness 52/100

mattermost/desktop#3158 · 3 comments · 4 reactions · Opened Oct 3, 2024
[bug]：Jitsi Meet does not have microphone and camera permissions in embedded mode, but it works fine in Chrome/Safari. Open

All Platforms PR Exists Type/Bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

mattermost/desktop#3074 · 7 comments · 4 reactions · Opened Jun 20, 2024
[Bug]: DNS time-to-live not respected Open

All Platforms Electron Type/Bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mattermost/desktop#2859 · 4 comments · Opened Sep 27, 2023
[Bug]: Screen sharing needs multiple confirmations Open

Electron Linux Type/Bug Wayland

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mattermost/desktop#2817 · 7 comments · Opened Sep 2, 2023
[Bug]: User Presence Status not updating on Windows Desktop Client Open

Type/Bug

Difficulty 4/5 3-5 days Newbie friendliness 30/100

mattermost/desktop#2785 · 13 comments · Opened Jul 11, 2023
Cannot manage user dictionary Open

All Platforms Type/Enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mattermost/desktop#2192 · Opened Jul 9, 2022
portable(s) are not actually portable Open

All Platforms Type/Enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mattermost/desktop#2136 · 1 comment · Opened May 27, 2022
Simpler switch for spaces and better visibility of space notifications Open

All Platforms Type/Enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

mattermost/desktop#1985 · 3 comments · 2 reactions · Opened Feb 1, 2022
Sync User Presence to Host OS's Lock Status Open

All Platforms Type/Enhancement

Difficulty 4/5 3-5 days Newbie friendliness 42/100

mattermost/desktop#1187 · 5 comments · Opened Feb 10, 2020

mattermost/desktop

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