For comparison, on Xeon E3.1230 v5, 16 GB RAM, SATA 3.3 SSD, Nvidia GPU (vendor driver):
maxi@maxi-desktop:~$ snap run --trace-exec firefox
[sudo] password for maxi:
Gtk-Message: 15:23:36.317: Failed to load module "canberra-gtk-module"
Gtk-Message: 15:23:36.336: Failed to load module "canberra-gtk-module"
[GFX1-]: glxtest: libEGL missing
[GFX1-]: glxtest: libEGL missing
###!!! [Parent][MessageChannel] Error: (msgtype=0x390078,name=PContent::Msg_DestroyBrowsingContextGroup) Closed channel: cannot send/recv
###!!! [Parent][MessageChannel] Error: (msgtype=0x390078,name=PContent::Msg_DestroyBrowsingContextGroup) Closed channel: cannot send/recv
###!!! [Child][MessageChannel] Error: (msgtype=0x6A0024,name=PNecko::Msg_RequestContextAfterDOMContentLoaded) Channel closing: too late to send/recv, messages will be lost
###!!! [Child][MessageChannel] Error: (msgtype=0x6A0024,name=PNecko::Msg_RequestContextAfterDOMContentLoaded) Channel closing: too late to send/recv, messages will be lost
###!!! [Parent][MessageChannel] Error: (msgtype=0x390078,name=PContent::Msg_DestroyBrowsingContextGroup) Closed channel: cannot send/recv
###!!! [Parent][MessageChannel] Error: (msgtype=0x390078,name=PContent::Msg_DestroyBrowsingContextGroup) Closed channel: cannot send/recv
###!!! [Parent][MessageChannel] Error: (msgtype=0x390078,name=PContent::Msg_DestroyBrowsingContextGroup) Closed channel: cannot send/recv
###!!! [Parent][MessageChannel] Error: (msgtype=0x390078,name=PContent::Msg_DestroyBrowsingContextGroup) Closed channel: cannot send/recv
###!!! [Parent][MessageChannel] Error: (msgtype=0x390078,name=PContent::Msg_DestroyBrowsingContextGroup) Closed channel: cannot send/recv
###!!! [Parent][MessageChannel] Error: (msgtype=0x390078,name=PContent::Msg_DestroyBrowsingContextGroup) Closed channel: cannot send/recv
###!!! [Parent][MessageChannel] Error: (msgtype=0x390078,name=PContent::Msg_DestroyBrowsingContextGroup) Closed channel: cannot send/recv
###!!! [Parent][MessageChannel] Error: (msgtype=0x390078,name=PContent::Msg_DestroyBrowsingContextGroup) Closed channel: cannot send/recv
###!!! [Child][MessageChannel] Error: (msgtype=0x6A0024,name=PNecko::Msg_RequestContextAfterDOMContentLoaded) Channel closing: too late to send/recv, messages will be lost
###!!! [Parent][MessageChannel] Error: (msgtype=0x390078,name=PContent::Msg_DestroyBrowsingContextGroup) Closed channel: cannot send/recv
###!!! [Parent][MessageChannel] Error: (msgtype=0x390078,name=PContent::Msg_DestroyBrowsingContextGroup) Closed channel: cannot send/recv
###!!! [Parent][MessageChannel] Error: (msgtype=0x390078,name=PContent::Msg_DestroyBrowsingContextGroup) Closed channel: cannot send/recv
###!!! [Parent][MessageChannel] Error: (msgtype=0x390078,name=PContent::Msg_DestroyBrowsingContextGroup) Closed channel: cannot send/recv
###!!! [Child][MessageChannel] Error: (msgtype=0x6A0024,name=PNecko::Msg_RequestContextAfterDOMContentLoaded) Channel closing: too late to send/recv, messages will be lost
###!!! [Child][MessageChannel] Error: (msgtype=0x390141,name=PContent::Msg_ScriptError) Channel closing: too late to send/recv, messages will be lost
###!!! [Child][MessageChannel] Error: (msgtype=0x390141,name=PContent::Msg_ScriptError) Channel closing: too late to send/recv, messages will be lost
###!!! [Child][MessageChannel] Error: (msgtype=0x23002F,name=PBrowser::Msg___delete__) Channel closing: too late to send/recv, messages will be lost
###!!! [Child][MessageChannel] Error: (msgtype=0x23002F,name=PBrowser::Msg___delete__) Channel closing: too late to send/recv, messages will be lost
###!!! [Child][MessageChannel] Error: (msgtype=0x23002F,name=PBrowser::Msg___delete__) Channel closing: too late to send/recv, messages will be lost
###!!! [Child][MessageChannel] Error: (msgtype=0x23002F,name=PBrowser::Msg___delete__) Channel closing: too late to send/recv, messages will be lost
###!!! [Child][MessageChannel] Error: (msgtype=0x23002F,name=PBrowser::Msg___delete__) Channel closing: too late to send/recv, messages will be lost
###!!! [Child][MessageChannel] Error: (msgtype=0x23002F,name=PBrowser::Msg___delete__) Channel closing: too late to send/recv, messages will be lost
###!!! [Child][RunMessage] Error: Channel closing: too late to send/recv, messages will be lost
Slowest 10 exec calls during snap run:
0.834s snap-update-ns
0.990s /usr/lib/snapd/snap-confine
0.209s /snap/firefox/631/snap/command-chain/desktop-launch
0.100s /usr/bin/dbus-send
0.114s /usr/bin/xdg-settings
0.062s /usr/bin/xdg-settings
0.066s /usr/bin/xdg-settings
2.493s /snap/firefox/631/usr/lib/firefox/firefox
0.910s /snap/firefox/631/usr/lib/firefox/firefox
1.808s /snap/firefox/631/usr/lib/firefox/firefox
Total time: 8.182s