# Mouse button 4 and 5 (back/forward) not working **URL:** \ **Category:** Community Support\ **Tags:** thinlinc\ **Created:** [1 September 2022 07:14 UTC](https://community.thinlinc.com/t/mouse-button-4-and-5-back-forward-not-working/430 "2022-09-01T07:14:47Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Thoast](https://avatars.discourse-cdn.com/v4/letter/t/7bcc69/32.png) [@Thoast](https://community.thinlinc.com/u/Thoast)\ **Post date:** [1 September 2022 07:14 UTC](https://community.thinlinc.com/t/mouse-button-4-and-5-back-forward-not-working/430/1 "2022-09-01T07:14:47Z")
Why is only left click, right click and middle click passed running Thinlinc with Redhat? Is there a way to fix this? ---
**Author:** ![martin](https://dub1.discourse-cdn.com/flex005/user_avatar/community.thinlinc.com/martin/32/41_2.png) [@martin](https://community.thinlinc.com/u/martin)\ **Post date:** [1 September 2022 08:08 UTC](https://community.thinlinc.com/t/mouse-button-4-and-5-back-forward-not-working/430/2 "2022-09-01T08:08:54Z")
Hello @Thoast Welcome to the forum, and thank you for the question! The reason for this limitation is because of the VNC protocol, which ThinLinc in based upon, only supports a limited number of buttons. An extension to the protocol would need to be developed for this functionality. This is known to us, and is being tracking in our Bugzilla at [https://bugzilla.cendio.com/show\_bug.cgi?id=7459](https://bugzilla.cendio.com/show_bug.cgi?id=7459) ---
**Author:** ![wilsj](https://dub1.discourse-cdn.com/flex005/user_avatar/community.thinlinc.com/wilsj/32/554_2.png) [@wilsj](https://community.thinlinc.com/u/wilsj)\ **Post date:** [27 August 2025 11:47 UTC](https://community.thinlinc.com/t/mouse-button-4-and-5-back-forward-not-working/430/3 "2025-08-27T11:47:09Z")
Hi @Thoast, Just letting you know that this has been fixed in ThinLinc 4.19.0. With both the server and client updated to 4.19.0, mouse 4 and 5 will now be properly sent into your session.