My firefox settings

firefox settings.md

These files goes into your user profile folder, which can be found at about:profiles.

The user.js file goes into the root of the profile directory, and userChrome.css and userContent.css goes into a subfolder called chrome.

user.js

/*
 Mozilla deprecated user customization! ☹
 For speed, they said. While speed IS important, I really think they should 
 prioritise customizability and plugin api before crippling the browser
 for a few millis in launch speed. Firefox have, for me, always been the 
 customizable browser. I don't give a rats ass about privacy (more than whats 
 reasonable). Modulisation, customisability, and stability is what I look for 
 in any software.
 Anyway, to re-enable:
*/
user_pref('toolkit.legacyUserProfileCustomizations.stylesheets', true);
/*
 Disable un-wanted but built-in extensions and features.
*/
user_pref('browser.pocket.enabled', false);
user_pref('extensions.pocket.enabled', false);
/*
 Disables backspace.
 Because occasionally it triggers while I'm writing a long Reddit comment. ☹
*/
user_pref('browser.backspace_action', 2);
/*
 Some ads and websites somewhy try to turn on VR without my permission.
 This launches SteamVR on the desktop. Lets turn it off, I don't use it.
*/
user_pref('dom.vr.openvr.enabled', false);
user_pref('dom.vr.enabled', false);
/* 
 Forcing webrender is way more performant, 
 will probably be enabled by default in the future 
*/
// user_pref('gfx.webrender.all', true);
// user_pref('gfx.webrender.enabled', true);

// Sidebar position right.
user_pref("sidebar.position_start", false);

// Dont remember my passwords.
user_pref("signon.rememberSignons", false);

// Disable spellcheck.
user_pref("layout.spellcheckDefault", 0);

// Disable autoscroll and smoothscroll.
user_pref("general.autoScroll", false);
user_pref("general.smoothScroll", false);

user_pref("browser.aboutConfig.showWarning", false);
user_pref("browser.newtab.extensionControlled", true);

userChrome.css

/* show bookmarks toolbar on new tab only */
/* #main-window:not([title^='Firefox Developer Edition']) #PersonalToolbar {
	visibility: collapse !important;
} */

/* 
Hide close tab button on inactive tabs. 
Prevents accidental closings when using touch. 
*/
.tabbrowser-tab:not([visuallyselected='true']) .tab-close-button {
	display: none !important;
}

/* Move "find on page" box to the top of the page. */
.browserContainer > findbar {
	-moz-box-ordinal-group: 0;
	position: fixed !important;
}

/*
Hide back/forwards/refresh buttons when grayed out.
*/
.tabbrowser-arrowscrollbox > .scrollbutton-up[disabled='true'],
.tabbrowser-arrowscrollbox > .scrollbutton-down[disabled='true'],
:root:not([customizing]) .toolbarbutton-1[disabled='true'],
/* #nav-bar-overflow-button[disabled='true'], */
#PanelUI-menu-button[disabled='true'] {
	display: none !important;
}

/*
 Why is there a max width on a "flexible space" anyway? Doesn't seem very flexible.
*/
/* toolbarpaletteitem[place='toolbar'][id^='wrapper-customizableui-special-spring'],
toolbarspring {
	max-width: inherit;
} */

/* 
Hide item from context menu 
*/
#context-sendimage,
#context-setDesktopBackground,
#context-bookmarkpage,
#context-savepage,
#context-sep-sendpagetodevice,
#context-sendpagetodevice,
#context-selectall,
#context-sep-viewbgimage,
#context-viewsource,
#context-viewinfo,
#context-sep-viewsource,
#context-sep-sendlinktodevice,
#context-sendlinktodevice,
#context-sep-open,
#context-bookmarklink,
#context-viewbgimage[disabled='true'],
#context-viewpartialsource-selection {
	display: none !important;
}

/* 
Right-aligned toolbars:
*/
/* #PersonalToolbar #PlacesToolbarItems {
	-moz-box-pack: end !important;
} */

/* 
Alternative way of doing right-aligned toolbars:
*/
/* #PersonalToolbar #PlacesToolbarItems {
	direction: rtl !important;
} */

/* remove maximum/minimum width restriction of sidebar */
#sidebar {
	max-width: none !important;
	min-width: 0px !important;
}

/*
Other context menu ids:

context-back
context-forward
context-reload
context-stop
context-bookmarkpage

context-savepage
context-sep-sendpagetodevice
context-sendpagetodevice
context-sep-viewbgimage
context-viewbgimage
context-selectall
context-sep-viewsource
context-viewsource
context-viewinfo
inspect-separator
context-inspect

spell-no-suggestions
spell-add-to-dictionary
spell-undo-add-to-dictionary
spell-suggestions-separator
context-openlinkincurrent
context-openlinkincontainertab
context-openlinkintab
context-openlinkinusercontext-menu
context-openlink
context-openlinkprivate
context-sep-open
context-bookmarklink
context-savelink
context-savelinktopocket
context-copyemail
context-copylink
context-sep-copylink
context-media-play
context-media-pause
context-media-mute
context-media-unmute
context-media-playbackrate
context-media-loop
context-media-showcontrols
context-media-hidecontrols
context-video-fullscreen
context-leave-dom-fullscreen
context-video-pictureinpicture
context-media-sep-commands
context-reloadimage
context-viewimage
context-viewvideo
context-copyimage-contents
context-copyimage
context-copyvideourl
context-copyaudiourl
context-sep-copyimage
context-saveimage
context-sendimage
context-setDesktopBackground
context-viewimageinfo
context-viewimagedesc
context-savevideo
context-saveaudio
context-video-saveimage
context-sendvideo
context-sendaudio
context-ctp-play
context-ctp-hide
context-sep-ctp
context-pocket
context-sep-sendpagetodevice
context-sendpagetodevice
context-sep-viewbgimage
context-viewbgimage
context-undo
context-sep-undo
context-cut
context-copy
context-paste
context-delete
context-sep-paste
context-selectall
context-sep-selectall
context-keywordfield
context-searchselect
context-sep-sendlinktodevice
context-sendlinktodevice
frame-sep
frame
context-viewpartialsource-selection
context-sep-viewsource
context-viewsource
context-viewinfo
spell-separator
spell-check-enabled
spell-add-dictionaries-main
spell-dictionaries
context-sep-bidi
context-bidi-text-direction-toggle
context-bidi-page-direction-toggle
fill-login-separator
fill-login
inspect-separator
context-inspect
context-inspect-a11y
context-media-eme-separator
context-media-eme-learnmore


*/

userContent.css

/*
Nothing here yet.
*/