[Bug] - Firefox "paste" button overlay (not happening on other browsers)

[stormlcc]

Describe the bug This bug only happens on Firefox browser (i'm using: 126.0.1 (64-bit)). Not sure whether this is a bug or an intended function but it only happens in Firefox, I tried on Chrome and it doesn't happen.

When I use KASM (v1.14.0.32d10f) on Firefox and open any Workspace (firefox / chrome / brave / Ubuntu OS desktop), when I left click onto the workspace (whether it's a browser or an OS GUI), an overlay of "paste" button appears. This happens even though there is nothing on the Clipboard. See screenshots.

This bug appears when I first click into the workspace, after using the workspace, it will stop appearing (for a while), but sometimes it will show up intermittently which is VERY ANNOYING.

To Reproduce Steps to reproduce the behavior:

1. Open KASM (v1.14.0.32d10f) on Firefox
2. Open any workspace browser (firefox / chrome / brave / Ubuntu OS desktop)
3. Left Click on the address bar (on browsers) or any areas within the workspace for desktops (e.g. Ubuntu desktop)

Expected behavior The overlay "paste" button will appear

Screenshots If applicable, add screenshots to help explain your problem.

Workspaces Version Version 1.15.0.577587

Workspaces Installation Method Single server standard install DISTRIB_ID=Ubuntu DISTRIB_RELEASE=22.04 DISTRIB_CODENAME=jammy DISTRIB_DESCRIPTION="Ubuntu 22.04.3 LTS"

Client Browser (please complete the following information):

• OS: Ubuntu 22.04
• Browser [Firefox]
• Version [126.0.1 (64-bit)]

Workspace Server Information (please provide the output of the following commands):

• uname -a Linux kasm 5.15.0-107-generic #117-Ubuntu SMP Fri Apr 26 12:26:49 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux

• cat /etc/os-release PRETTY_NAME="Ubuntu 22.04.4 LTS" NAME="Ubuntu" VERSION_ID="22.04" VERSION="22.04.4 LTS (Jammy Jellyfish)" VERSION_CODENAME=jammy ID=ubuntu ID_LIKE=debian HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" UBUNTU_CODENAME=jammy

• sudo docker info Client: Docker Engine - Community Version: 26.1.3 Context: default Debug Mode: false Plugins: buildx: Docker Buildx (Docker Inc.) Version: v0.14.0 Path: /usr/libexec/docker/cli-plugins/docker-buildx compose: Docker Compose (Docker Inc.) Version: v2.5.0 Path: /usr/local/lib/docker/cli-plugins/docker-compose

Server: Containers: 9 Running: 9 Paused: 0 Stopped: 0 Images: 36 Server Version: 26.1.3 Storage Driver: overlay2 Backing Filesystem: extfs Supports d_type: true Using metacopy: false Native Overlay Diff: true userxattr: false Logging Driver: json-file Cgroup Driver: systemd Cgroup Version: 2 Plugins: Volume: local Network: bridge host ipvlan macvlan null overlay Log: awslogs fluentd gcplogs gelf journald json-file local splunk syslog Swarm: inactive Runtimes: io.containerd.runc.v2 runc Default Runtime: runc Init Binary: docker-init containerd version: 8b3b7ca2e5ce38e8f31a34f35b2b68ceb8470d89 runc version: v1.1.12-0-g51d5e94 init version: de40ad0 Security Options: apparmor seccomp Profile: builtin cgroupns Kernel Version: 5.15.0-107-generic Operating System: Ubuntu 22.04.4 LTS OSType: linux Architecture: x86_64 CPUs: 4 Total Memory: 7.576GiB Name: kasm ID: 962aa780-077e-4e80-8739-d608231ec89c Docker Root Dir: /var/lib/docker Debug Mode: false Experimental: false Insecure Registries: 127.0.0.0/8 Live Restore Enabled: false

• sudo docker ps | grep kasm

Additional context