Godie

thank you very much. 💙

😱 wooow, you are the real master, I would never have been able to find that solution without your help, and that code also solves my oneline configuration that didn't allow clicking on tabs for some reason hehe, this was the reason hehe. thank you so much.

thanks, I don't know if I could be able to edit a svg animated, maybe I just delete that animation. ❤️‍🔥

thanks, I will try.

hi, I don't mean that, I mean the firefox-view tab, not the firefox-view button, when you clic the firefox-view button it opens the tab but this tab is invisible, and that was make problems for my code.

thanks for the help, I will use this, I hope don't affect other hidden tabs cause if I don't use [hidden="true"] too for some reason the code fails.

.tabbrowser-tab:is([hidden="true"][label="Firefox View"]){
    display: block !important;
    max-width: 0px !important;
    min-width: 0px !important;
    height: 0px !important;
    padding-inline: 0px !important;
}

Thanks for the explanation, you are a genius. I will use this:

.tabbrowser-tab:last-of-type::after{..}

Use this format to englobe all urls in about:preferences page:

@-moz-document url-prefix(about:preferences){...}

Edit: maybe you want something like this:

window, dialog{
    --in-content-border-color: red !important;
}

thanks. :)

@[email protected] could you help me with the syntax with not, or when I want use "or" or "and", for example this not work: @media ( not -moz-bool-pref:"firefoxgx.tab-shapes") {...}