Disable tab animations

[YarnSphere]

GNOME applications seem to have no tab animations (when creating a new tab or closing a tab); I believe it's in this theme's interest to copy that.

There used to be an about:config option to exclusively disable tab animations (browser.tabs.animate) but I cannot find it anymore (using FF 60.0). Currently, disabling toolkit.cosmeticAnimations.enabled seems to work, but I believe it is also turning off other animations.

It would be nice if this theme solved this without having to mess around in about:config. What do you think? Is it possible to disable the tab animations in the CSS?

If not, perhaps it would be a good idea to add a list of about:config settings to the README that further improve this theme's resemblance to a native GNOME application.

Thank you for your work so far!

[lunakurame]

I don't think it would be possible to just disable tab animations with our CSS styles, the tab bar has a lot of JS code always trying to mess with our styles: #10 and seems like those animations have something to do with e10s which also causes other bugs: #33. Disabling toolkit.cosmeticAnimations.enabled seems to also disable the refresh button animations (ignoring browser.stopReloadAnimation.enabled) but not the downloads button ones... which can be disabled with browser.download.animateNotifications. Aside from that inconsistency, isn't disabling all of them a desirable effect if you're aiming at more strict GNOME experience?

And yes, I'll add a list of related about:config settings to the README, that sounds like a good idea.

[YarnSphere]

Sounds like it might be desirable, yes; though GNOME has some animations. For example, menu pop-ups are animated. This might actually give you a better base to copy GNOME's behaviours: since the setting seems to disable most animations, if wanted, you might be able to use custom CSS animations on top of the non-animated UI to copy GNOME.

I'll await your list of about:config settings! Maybe you could even provide a default user.js file with all of them active?