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Preview of Insert Style Sheet (CSS) And JS Temporarily

Insert Style Sheet (CSS) And JS Temporarily by zupffwhy

Inject style sheets (CSS) and JavaScript (JS) on the current page or the current tab temporarily.

5 (1 reviews)5 (1 reviews)
25 Users25 Users
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Extension Metadata

Screenshots
OriginalApply a reddish styleInvert, Instant Pseudo Dark ModeMultiple styles can be applied individuallyOriginalDisplay original text and translation results together on Google Translate
About this extension
Insert style sheets and JavaScript into the current page or the current tab temporarily. The difference between this add-on and Stylus and other similar add-ons is that Stylus automatically inserts style sheets into pages that match the URL pattern, but in this add-on, the user manually inserts a style sheet on any page by clicking a button. The purpose of this add-on is, for example, to insert a style sheet temporarily to make it easy to read when encountered a page that is difficult to read, such as using an image as the background or a color with low contrast.

I invite you to explore and help me translate this add-on in Crowdin.

Please make a donation through Kampa!, Amazon (recipient Email: heyxedjn@kampa.me, You can donate a minimum of 15 yen (15 cents)) or PayPal.Me.

Tags:
Live editor for CSS and LESS,
dark mode,
Monochromer,
Open Pesticide (You can download its style sheet and use it with this add-on),
Pesticide, for Firefox,
unblur css,
CSS Toggler,
websites from hell,
【CSS】とにかく読みにくいページをつくってみた!pointer-events でイベントを制御する (フェンリル | デベロッパーズブログ),
【一部閲覧注意】いろんな意味でインパクトありすぎるWebサイト10 | Webクリエイターボックス
Developer comments
Bitcoin donations are also welcome: 1KMyBNyvVtnHn9iTT7YSCYzaWQA4WPFb8x
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Permissions and dataLearn more

Required permissions:

  • Monitor extension usage and manage themes
  • Display notifications to you
  • Access browser tabs
  • Access your data for all websites
More information
Add-on Links
  • Homepage
  • Support site
Version
1.2025.805.0
Size
118.53 KB
Last updated
3 days ago (Aug 5, 2025)
Related Categories
  • Appearance
  • Tabs
License
All Rights Reserved
Version History
  • See all versions
Tags
  • dark mode
  • facebook
  • google
  • social media
  • streaming
  • translate
  • twitch
  • twitter
  • user scripts
  • youtube
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