Vertical tabs have finally arrived in Firefox! The latest update adds that and a few other neat features, plus hardware video decoding on AMD GPUs for Linux users https://www.omgubuntu.co.uk/2025/03/firefox-136-released-with-vertical-tabs-new-sidebar-more
@omgubuntu is this new? I've been using vertical tabs for quite a while now.
@julian Yes Vertical Tabs are new in this /stable/ release. You may have enabled a development flag to use them prior to now on a stable release, or you may be run a beta, dev, or nightly build where they will have been available sooner.
@omgubuntu thanks. Yes that's probably it.