- These are useful while using site specific CSS rules for Firefox using the @moz-document tags. If at all possible, refrain from using these browser specific features in CSS files which will make your life easier. One way to use a single customized user stylesheet for each one of these browsers is to use file linking. This is easy and efficient.
- Edits to your Firefox profile's userChrome.css file can make all sorts of fun and useful changes to the fox's chrome, menus, dialogs and toolbars.
- Currently I have it set to view properly on Firefox PC because Im assuming most people are using a PC. If I change the.headerimage 'margin-top' to 7px, it will view properly in Safari and FF Mac. I had the #margin-top entered so I could have it viewing properly in Safari, FF Mac, and IE.
- Firefox 11 added two new web developer tools to Firefox’s already impressive arsenal. The Tilt feature visualizes website structures in 3D, while the Style Editor can edit CSS stylesheets on the fly. The 3D feature, known as Tilt, is a way of visualizing a website’s DOM.
- Css For Firefox Mac Version
- Download Mozilla Firefox For Mac - Free Web Browser }}— Mozilla
- Editing Configuration
- Appearance (-moz-appearance, -webkit-appearance) - CSS ..
- How To Customise Firefox 57+ UI With UserChrome.css
- Css For Firefox Mac Download
Want to experiment with the latest bleeding-edge web technologies? One way is to download a nightly (or developer) version of the browser. Both Chrome and Firefox have versions of their browsers where they launch experimental or non-standardised features – Chrome Canary and Firefox Nightly respectively. This allows for experimentation and getting feedback before rolling out full support. From time to time, you may need to enable experimental features yourself. This article will show you how to do that in Chrome and Firefox.
In fact, with a bit of custom CSS you can make Firefox look like Epiphany (aka GNOME Web), the core browser that ships with the GNOME desktop environment. Firefox UserChrome.css Firefox 57 with the Photon UI and the Ambiance GTK theme. The Firefox 57 release back in November came with a huge set of changes in tow. Alongside an all-new rendering.
Css For Firefox Mac Version
What are experimental features?
Browsers sometimes hide new features behind flags – meaning they’re not turned on by default for the majority of users. One example is the CSS Grid Layout Level 1 specification, which (when it was first implemented) was behind a flag in Firefox and Chrome. If we look for this in caniuse.com, we can see that this feature literally has a little flag in earlier versions of these browsers, to denote that it was experimental feature.
While behind a flag, the browser’s implementation of a particular feature may be buggy, and subject to change, but you can still try it out. In fact, if it’s a feature you’re keen to use, the earlier you try it out the better – and if you can give feedback then it’s even more valuable.
Right now, one experimental feature you can try out is subgrid – part of the CSS Grid Level 2 specification. It’s only available in Firefox Nightly, and you’ll need to enable it.
How to turn on experimental features
- In your browser, go to the URL about:config. This is the “hidden” settings area for your browser, and enables us to do much more than just enable the CSS features we want to work with - there are many other settings too. But be careful, you could break your browser’s functionality if you don’t know what you’re doing!
If you haven’t visited this URL before, you’ll get a warning that looks like this:Click “Accept the risks”.
Use the search bar to search for the name of the feature you want to enable. For example, if we search for
subgridwe’ll find the following:
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The ‘Value’ column on the right determines whether the feature is switched on. Double-click the item to switch the value from ‘false’ to ‘true’. The feature is now enabled.
- Go to the URL chrome://flags. Chrome’s UI is a little more user friendly than Firefox’s here, and it’s quite interesting to read about all the different features that you can enable or disable.
Search for the feature. Searching for CSS here (at the time of writing) only yields one result (CSS fragment identifiers). All features have a dropdown from which you can select the options enabled, disabled or default.The language is somewhat confusing, as it’s not clear whether a ‘Default’ features is enabled or disabled!
- Switch to the desired setting.
If you’re using a vanilla GNOME session on Ubuntu with the Adwaita theme, and want to make Firefox look a little more at home, you can.
In fact, with a bit of custom CSS you can make Firefox look like Epiphany (aka GNOME Web), the core browser that ships with the GNOME desktop environment.
The Firefox 57 release back in November came with a huge set of changes in tow. Alongside an all-new rendering engine, multi-thread processes, new browser features and other niceties was Photon — a newer, cleaner, and modern user interface and layout.
On the negative side, Firefox 57 doesn’t allow browser add-ons to change the look or layout of the new Photon interface.
But the look of Firefox can be modified using a cascading style sheet (CSS).
Using CSS you can, among other things:
- Hide menu items
- Reposition the tab bar
- Adjust sizing, spacing and margins
- Change fonts
- Restyle buttons
- Add extra tab or bookmarks rows
Admittedly, editing the UserChrome.css isn’t something to be done idly, but so long as you’re careful you’re unlikely to mess things up.
Wait: do i really need to do this?
Like Google Chrome, Firefox is now great at matching whatever GTK theme you’re already using. It picks up highlight colors, reuses widgets, menus colors, and so on. There’s no real need to modify or change anything: vanilla Firefox looks great out of the box on Linux.
But — and it’s a big but — the new UI doesn’t work for everyone. Those of you who want to take GTK theme integration further, move tabs under the URL bar, prune down the menu, and so on, can do so using user a userchrome.css file.
How to Edit Firefox Userchrome.css
To make use of a custom userchrome.css style you’ll first need to know where to place it, and that’s your Firefox profile folder.
On the Firefox profile folder on Linux is located in the following directory:
To show hidden files in Nautilus you just need to press Ctrl + H (other file managers may differ).
The <profile folder> name inside the firefox directory should be a string of random numbers and letters. If you have more than one Firefox profile you’ll have multiple profiles folders, do make sure you place the relevant files (see below) in the correct folder.
Adwaita Firefox UserChrome.css
If you use the GNOME Adwaita theme, like the look of the Web (aka Epiphany) web-browser, but don’t want to abandon Firefox you can use the (obliquely named) ‘Firefox GNOME Theme‘ user chrome style.
This style rejigs the layout of Firefox to bring it inline with the Adwaita theme and the default GNOME Web browser. It restyles navigation buttons, moves tabs below the address bar, and tweaks the color scheme.
The style supports both regular Adwaita and Adwaita dark.
This style will work on Firefox 57 (and presumably later versions, incase you’re reading from the future).
You can find more details on the style, including how to enable/disable the light and dark modes, on the Github project page:
If you want Adwaita dark simply download this zip and extract. Inside the extracted folder copy the userchrome.css, usercontent.css and UI folder to your ~/.mozilla/firefox/<profile folder> directory. Restart the browser.
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If you want to the normal version of Adwaita download this zip and extract. Inside the extracted folder copy only the userchrome.css and UI folder to your ~/.mozilla/firefox/<profile folder> directory.
Next, open the css file in Gedit. Comment out the dark theme and uncomment the light theme so that the file reads like this:
Save your changes and restart Firefox.
Appearance (-moz-appearance, -webkit-appearance) - CSS ..
If you followed our guide on how to make Ubuntu look like a Mac you can up the Apple ante on your system somewhat by using CSS tomake Firefox look more like Safari.
The following is not 100% perfect (especially while we wait for CSD) but it’s a good enough imitation:
How To Customise Firefox 57+ UI With UserChrome.css
If you’re less concerned with theme integration and more with maximum want a condensed layout with tight padding, reduced margins and a double-hight tab bar you have to choice out suFFiciently_compact style by Marcus W:
Css For Firefox Mac Download
If you know of any other great userchrome.css tweaks/themes do let us know about them using the tip form, or by sharing them in the comments below.