Removes unused selectors from all stylesheets on a page and combines the result into a single stylesheet that can be downloaded

Latest Version

Version
0.2.0.2
Update
February 3, 2014
Size
270KiB
Developer
Category
Users
6,000+
Rating
2.27826 ★
Manifest Version
2
Web Store Status
Languages Support
English (UK)
See more
Permissions
Tabs
Http://*/*
Https://*/*
See more

CSS remove and combine Extension

This extension removes unused CSS rules on a page by creating a new CSS stylesheet containing only those selectors in use. This not only tidies and optimizes your stylesheets but combines them into a single file which can then be downloaded. The approach used by the extension is based on eliminating all ID and class based selectors that reference IDs and classes not on the page. There is also a quick view dialog that will give the user information on a page about the number of used and unused selectors. There is also now a report on the unused selectors which can be used to verify that the extension is working as described.

There is an issue reported in a review that the extension opens links to other websites. I can't see how this can be possible. The extension gets a list of stylesheets. This list is a property of the webpage document object. It then trys to open each stylesheet. If the stylesheet is on another domain, then nothing will be returned. In this way the extension cannot open any page on another domain. There is development code to get around this problem, but it is not yet active.

The \"WebKitBlobBuilder\" issue has now been solved. This rendered the extension unusable - thus all the negative feedback. Sorry that I couldn't fix the problem earlier as I was unfortunately sick for a long while. The \"WebKitBlobBuilder\" error was due to a change (quite reasonable) in chrome to remove support for the \"WebKitBlobBuilder\" property in favour of the standard \"BlobBuilder\".

Please let me know if the extension is working as advertised. You can contact me through the normal extension feedback system or at [email protected]

0.2.0.0: Added Unused Selector Report
0.1.2.0: Multiple window issue fixed
0.1.1.0: 'WebKitBlobBuilder' issue fixed

Issues:
1: Stylesheets on a different domain report no selectors. Message will print out saying no selectors found. Under development.
2: Ajax or JavaScript added elements not accounted for. Under development
3: Media queries not respected.
Read more

Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "name": "CSS remove and combine", "short_name": "CSS remove", "version": "0.2.0.2", "browser_action": { "default_icon": "file_CSS.png", "default_popup": "popup.html" }, "background": { "scripts": ["background.js"] }, "description": "Removes unused selectors from all stylesheets on a page and combines the result into a single stylesheet that can be downloaded", "icons": { "128": "images/icon128.png", "16": "images/icon16.png", "32": "images/icon32.png", "48": "images/icon48.png" }, "permissions": [ "tabs", "http://*/*", "https://*/*" ], "manifest_version":2}
Read more

Similar Extensions

icon

CSS Used Extension · Developer Tools 6,000+ 184 ★ 164KiB

icon

Unused CSS Tracker Extension · Developer Tools 6,000+ 11 ★ 24.94KiB

icon

CSS-Block Extension · Developer Tools 6,000+ 12 ★ 89.78KiB

icon

CSSViewer Extension · Developer Tools 6,000+ 371 ★ 301KiB

icon

Live editor for CSS, Less & Sass - Magic CSS Extension · Developer Tools 6,000+ 266 ★ 2.15MiB

icon

Xdebug helper Extension · Developer Tools 6,000+ 429 ★ 70.13KiB

icon

Drag Design Extension · Developer Tools 6,000+ 17 ★ 137KiB

icon

Save CSS Extension · Developer Tools 6,000+ 29 ★ 23.44KiB

icon

CSSSteal Extension · Developer Tools 6,000+ 46 ★ 557KiB

icon

LiveReload Extension · Developer Tools 6,000+ 808 ★ 60.78KiB

icon

User CSS Extension · Developer Tools 6,000+ 264 ★ 298KiB

icon

Live CSS Editor Extension · Developer Tools 6,000+ 182 ★ 24.38KiB

icon

Validity Extension · Developer Tools 6,000+ 210 ★ 108KiB

icon

eXtract Snippet Extension · Developer Tools 6,000+ 38 ★ 297KiB

icon

PageSpeed Insights (MV3) Extension · Developer Tools 6,000+ 77 ★ 524KiB

icon

CSS Shapes Editor Extension · Developer Tools 6,000+ 101 ★ 84.76KiB

icon

Web Developer Checklist Extension · Developer Tools 6,000+ 54 ★ 32.65KiB

icon

SnipCSS Extension · Developer Tools 6,000+ 32 ★ 13.12MiB

icon

Emmet LiveStyle Extension · Developer Tools 6,000+ 351 ★ 356KiB

icon

jQuery Debugger Extension · Developer Tools 6,000+ 110 ★ 88.52KiB

icon

Code Cola Extension · Developer Tools 6,000+ 188 ★ 189KiB

icon

AMP Validator Extension · Developer Tools 6,000+ 97 ★ 2.51MiB

icon

Emmet Re:view Extension · Developer Tools 6,000+ 162 ★ 74.65KiB

icon

Stylebot Extension · Accessibility 6,000+ 1603 ★ 10.27MiB

User reviews

icon

Vladan Colovic (ID: 000000d3b7df6713) Voted 1 ★ - Updated 05/17/2023 Not working

icon

Jason C (ID: 0000005a2c0f9629) Voted 1 ★ - Updated 06/07/2022 does not work download button is a no-op; show unused throws some error about a null title.

icon

Hao Wang (ID: 000000aeec75fc45) Voted 2 ★ - Updated 05/23/2022 这插件没人维护了?老是报错: SecurityError: Failed to read the 'cssRules' property from 'CSSStyleSheet': Cannot access rules各位有没有同类型插件推荐?

icon

Ilya Zhulin (ID: 0000002e770e3a87) Voted 2 ★ - Updated 10/22/2020 Выдает alert с ошибкой. Не работает.

icon

Глеб Михайлов (Глебушка) (ID: 000000b9f2837f72) Voted 2 ★ - Updated 03/07/2020 Не работает. Нужно доработать.