Critical CSS Extractor
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This extension has been flagged as potentially malicious.
Extension Delisted
This extension is no longer available in the official store. Delisted on 2025-09-15.
extract Critical CSS rules for the current page
Once you install this extension, you will see a new panel, 'Critical CSS' in your Developer Tool. By clicking 'Extract Critical CSS', a text file which has CSS rules for Above the Fold, or First View of a current page is downloaded.
v2.7.3
fix for getting url command
v2.7.2
fix format in downloaded file
v2.7.0
fix for root relative path
v2.6.9
support for @support
v2.6.8
fix for CSSMediaRule
v2.6.7
fix handling of @import rule
v2.6.3
fix to duplicate a current tab even if a devtool floats
v2.6.2
fix for webkit pseudo elements
v2.6.1
open original page in new tab
v2.6
add preference page
v2.5
preserve back slashes in css rules
v2.4
prevent css rules of different frames from applied to a main frame
v2.3
fix for pseudo elements and pseudo classes.
Latest reviews
Works great. @media queries where the rule is marked as critical by Chrome but not the query itself don't get exported. Otherwise I would give it 5 stars. I feel sad for the dev cause of all the 1 star ratings which only result from people not able to operate the plugin.
Works perfectly: extracts the critical CSS as well as some other automatic online tools. You just need to look for a new tab in the Dev Tools and click the "Extract Critical CSS" button. Done, a file is downloaded instantly.
works fine!
Does not work. When click the plugin button it goes to extension page. Uninstalling.
созданный css ломает всю верстку сайта, зачем такое убогое расширение?
Doesn't work. Uninstalling.
no work
It's working fine! The extension adds a new developer tab on developer tool (F12).
It is not working... Button is grey
Yep definitely not working - the button is grey and when you click on it - it brings you back to the extensions page
Ставишь а оно такое, хоп и не работает
Doesn't work. There is no button to extract CSS, only for this page and options and etc. Also, extension button is grey, but the extension is enabled.
Does a good job of extracting the critical CSS, but the resulting CSS is malformed. It is easily repaired, and I have submitted a Support ticket. With this fixed, I would be very happy with this! Atg
