Lines at 446, 493 and 505 nm. Chrome diopside, sharp lines at 490, 505, 508 nm, indistinct lines at 635, 655, 670 and double line at 690 nm. Chrome diopside has lines at 5080, 5050, 4900, plus fuzzy bands. Lines at 446, 493 and 505 nm. Chrome diopside, sharp lines at 490, 505, 508 nm, indistinct lines at 635, 655, 670 and double line at 690 nm. Chrome diopside has lines at 5080, 5050, 4900, plus fuzzy bands at 6350, 6550, 6700 and a doublet at 6900. Pale green diopside gives lines at 5050, 4930, and 4460.
- Chrome 57 adds support for
display: grid
- the new CSS Grid Layout specification. - You can now customize and respond to user input on the lock screen and notifications using the new Media Session API.
- And there are plenty more!
I'm Pete LePage, let's dive in and see what's new for developers in Chrome 57!
CSS grid layout #
Flexbox is a powerful layout tool. It makes many complex layouts possible, but it can only do layout in one dimension. Chrome 57 adds support for
display: grid
- the new CSS Grid Layout specification, adding a powerful new tool for creating two-dimensional grid-based layout systems, optimized for responsive user interface design.
Elements within the grid can span multiple columns or rows. Cisco 350 drivers for mac. Regions in a CSS grid can also be named, making layout code easier to understand.
Surma has an Updates post about it, and when you're ready to dive in deeper, check out Rachel Andrew's site: GridByExample.com.
Media Session API #
One of the missing features from web media applications has been the ability to deeply integrate with the core media experience on mobile devices. In Chrome for Android, you can now customize the lock screen and notifications with media content using the new Media Session API.
By providing metadata to the browser about the content being played, you can create rich lock screen messaging that includes information such as title, artist, album name, and artwork. You can also listen for and respond to user actions taken on the notification itself, such as seeking or skipping.
If you want to get started quickly, Francois has a great Updates post, or check out the official Chrome media sessions samples repo on GitHub.
And more! #
And there's lots more!
- There are someimprovements to the Payment Request API.
- You can specify the color of the text input cursor with the
caret-color
property. - Visual effects such as line color and style can be specified with new
text-decoration
properties. - The Fetch APIResponse class now supports the
.redirected
attribute to help avoid untrustworthy responses and reduce the risk of open redirectors. - All
-webkit-
prefixed IndexedDB global aliases have been removed, after their deprecation in M38. - And one of my favorites — new
padStart
andpadEnd
formatting methods that simplify string padding when aligning console output or printing numbers with a fixed number of digits.
These are just a few of the changes in Chrome 57 for developers.
Shout out to Igalia #
Finally, a big shout out to the engineers and team at Igalia for their awesome work on Blink. They were instrumental on landing the new CSS Grid and
caret-color
features.
Stay up to date #
If you want to stay up to date with Chrome and know what's coming, be sure to subscribe to our channel, or follow @ChromiumDev on Twitter. And be sure to check out the videos from the Chrome Dev Summit for a deeper dive into some of the awesome things the Chrome team is working on.
I'm Pete LePage, and as soon as Chrome 58 is released, I'll be right here to tell you -- what's new in Chrome!
Last updated: Improve article
userChrome.css is a style sheet with special importance to Firefox. The rules in userChrome.css are applied to the user interface, and can override nearly every built-in style rule. Unfortunately, you cannot use userChrome.css to change the functional operation of Firefox; that's what extensions are for.
Creating a userChrome.css file and adding style rules allows you to make changes to fonts and colors, hide unnecessary items, adjust spacing, and make other changes to the appearance of Firefox. The following examples illustrate the wide range of effects you can create, either by creating your own style recipes, or building on the work of CSS wizards sharing their talents on the web.
Hide Unwanted Menu Items
Do you have Sync set up, but no mobile bookmarks?
CSS:
Among other sources, this was discussed in a Mozilla Support thread: how do I delete the mobile bookmarks folder? If you wanted to hide everything above your own bookmarks, you could use: Gateway 200 arc drivers.
What Is Chrome 57
SVG Fill
CSS (download SVG fill) (updated 17 Sept 2018) (10 May 2018 version, 19 Dec 2017 version):
There is a discussion about the original version of this style recipe, and other variations on the theme, on Mozilla's support forum at All bookmarks have grey folders-update 56.
Old Icons Variation
To install: (A) download this zip file containing the style sheet and old images from Firefox 56: Fx56_bookmark_buttons.zip (updated Sept. 12, 2019) (older versions: Oct. 13, 2018, Dec. 19, 2017); (B) extract all contents into the chrome folder; (C) if you do NOT have a userChrome.css file, rename userChrome-STARTER.css to userChrome.css; (D) if you DO already have a userChrome.css file, copy the line from userChrome-STARTER.css to the top of your userChrome.css file to include the userChrome_Fx56_bookmark_icons.css file; (D) make sure toolkit.legacyUserProfileCustomizations.stylesheets is set to true. Firefox will pick up the change at your next startup.
Move the Tab Bar Below the Other Toolbars (like Firefox 1.0-3.6)
Firefox 65+: The structure of the toolbar area has changed. You can use the rules from Aris: Custom CSS tweaks for Firefox Quantum. I have created extracts, but these may not work on every system:
- Firefox 74+ on Windows and Linux (updated July 17, 2020; checked Jan. 24, 2021)
Firefox 72-74 on Windows and Linux (updated Feb. 13, 2020)
Firefox 68-71 on Windows and Linux (updated Dec. 22, 2019) - Firefox 74+ on MacOS (updated Jan. 24, 2021)
Firefox 68-74 on MacOS (updated Dec. 7, 2019)
Chrome 57 Dash Plaques
In case of problems, please visit the source.
![What What](https://www.zdnet.com/a/hub/i/r/2017/03/15/0a9a542f-6622-4ade-8585-605eedda337e/resize/770xauto/c643dc9a7d08849bcfe00ed4542a8fc2/7-google-chrome-geralt-zdnet-eileen-brown.jpg)
Legacy CSS for Firefox 57-64: download (updated 6 Mar 2018).
![What Is Chrome 57 What Is Chrome 57](https://pic.chinesefontdesign.com/uploads/2012/12/051.jpg)
Update (3/13/2020): For Firefox 74, please refer to this thread on the Firefox subreddit: https://www.reddit.com/r/firefox/comments/fgozre/multiple_bookmark_toolbar_rows_in_ff_74/
CSS:
There are multiple style recipes to 'wrap' the bookmarks toolbar, including:
- bookmarks_toolbar_multiple_lines.css (by the author of Classic Theme Restorer)
- Multiple row bookmark toolbar for Firefox 57/58? (for Firefox 57-65)
Rearrange the Address Bar Drop-Down List
Perhaps you prefer the two-row display from before Firefox 48?
You can choose from various autocomplete drop-down styles here: URL Bar Tweaks - Remove Visit/Search & Limit Width – userChrome.css Style Builder.
Curve the Tabs
For many users, squared off tabs are unacceptably ugly. It is not too difficult to introduce some rounded shoulders to the tops of tab, but re-creating the flared lower parts is more challenging.
Chrome 57 Release Date
CSS (download):
The following style recipes aim to restore the Firefox 29-56 tab shapes. They are much more elaborate and are a bit more prone to breakage as Firefox evolves, so check for updates if something goes wrong (or click the author's Issues tab and submit a bug report):
Chrome 57 Browser
- FirefoxUI hybrid by axydavid (makes several other changes; not working well in Firefox 59)
- Photon Australis Curve Tab (semi-Chrome style) (makes several other changes; tabs can get very small)
- Or if you like the trapezoid shape of tabs in Google Chrome: firefox-like-chrome (some visual glitches in Firefox 59 on Windows)
- And the recent redesign of Chrome's UI inspired this one: MaterialFox
Ready to Give It a Try?
If you have a user interface tweak in mind, these pages may help:
Related Questions
What's Chrome got to do with it?
If you mean a browser named Chrome, nothing. Mozilla has used to term chrome to refer to the user interface of its browser since it developed Firefox's predecessor, the Mozilla Suite. Another company liked it so much they named a bunch of products after it. But you definitely do not need those products to create or use a userChrome.css file in Firefox.
Is this the same as userChrome.js?
No, not at all. See the following page for an overview of how a JavaScript file named userChrome.js might be applied to Firefox: What is userChrome.js?.