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How do I make the back button and X buttons on tabs bigger?

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How do I make the back button and X buttons on tabs bigger? I have a wide screen, so everything is appearing very small. I have downloaded an add-on to make my font bigger, and I have customized the toolbar to be regular size icons, not small icons. I have also chosen icons + text, but all the icons are still too small for me, especially the back/forward buttons, the X buttons on tabs, and my pinned websites icons. How do I make these larger? Thank you!

How do I make the back button and X buttons on tabs bigger? I have a wide screen, so everything is appearing very small. I have downloaded an add-on to make my font bigger, and I have customized the toolbar to be regular size icons, not small icons. I have also chosen icons + text, but all the icons are still too small for me, especially the back/forward buttons, the X buttons on tabs, and my pinned websites icons. How do I make these larger? Thank you!

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You can try code like this in the userChrome.css file.

The customization files userChrome.css (interface) and userContent.css (websites) are located in the chrome folder in the user profile folder.


@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* only needed once */

/* Tab bar: close button */
.tab-close-button .toolbarbutton-icon,
.tabs-closebutton .toolbarbutton-icon {
 height: 25px !important;
 width: 25px !important;
 margin: -4px 0px !important;
}

#nav-bar toolbarbutton > .toolbarbutton-icon,
#personal-bookmarks toolbarbutton.bookmark-item > .toolbarbutton-icon {
 height: 32px !important;
 width: 32px !important;
}
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That worked fine but it also made the Navigation Bar buttons bigger so I removed the #nav-bar code and that was perfect, thanks a mil!

How to get the code above to work. Install ChromEdit Plus (it's FREE) addon for Firefox http://webdesigns.ms11.net/chromeditp.html, it installs under Tools on the menu bar, open ChromEdit and copy and paste his code in userChrome.css, save and restart Firefox.