I want to start by saying that the updates contained herein are not absolutely necessary.
A forum user asked this question:
Is there a way to use the context menu for tabs in Firefox mobile? Tap and hold used to bring up a menu where I could, among other things, send the tab to another device. That is very useful at times.
Tap and hold in the tabs list doesn’t bring up any menu at all.
I answered this question in what I am calling Question & Answer (post 85) and made an update in the Final Updates (post 61).
Updated November 17th 2023:
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Added fenix_theme.css for those that want the Firefox for Android (fenix) theme and don’t want to hide the Tab Bar.
Added file descriptions to some posts.
Adjusted the following files to hide the Tab Bar in Fullscreen and to hide the Title Bar (only useful if you modify these files to prevent hiding the Tab Bar):
Lines 251-254 and Lines 511-514 of fenix_fox-alt.css
Lines 251-254 and Lines 542-545 of fenix_fox.css
Lines 472-475 and Lines 732-735 of fenix_one-alt.css
Lines 472-475 and Lines 763-766 of fenix_one.css
Changed this:
/* Hide Nav Bar when in Fullscreen mode */
#nav-bar[inFullscreen] {
display: none;
}
To this:
/* Hide Nav Bar and Tab Bar when in Fullscreen mode and hide and Title Bar */
#nav-bar[inFullscreen],
#TabsToolbar[inFullscreen],
.titlebar-buttonbox-container {
display: none;
}