extension ExtPose

Custom Style Script

CRX id


Description from extension meta

Add Custom JavaScript (JS) Code or Styles (CSS) to any page.

Image from store Custom Style Script
Description from store Custom Style Script customizes the way a webpage looks or behaves, by adding a small JavaScript or CSS code. You can also specify a URL to add the code or add it to all pages. Key features: 1. Add custom JavaScript codes or styles (CSS) to a specific page or all pages. 2. Clicking on the toolbar icon allows you to disable or enable the addon. 3. Each code item has several options to adjust (see options page for details). 4. You can add several code items and active or inactive them separately. 5. An example of how to add a code is available in the add-on's options page. 6. Before adding the code (JS or CSS) please make sure you have validated the code. 7. Online JS or CSS links (i.e. jQuery or bootstrap) can also be added to any page. See add-on's options page for details. Note: to report bugs, or request a feature, please visit the add-on's homepage (https://mybrowseraddon.com/custom-style-script.html) and fill the bug report form.

Latest reviews

  • (2023-08-16) Ian TheHunter: Very useful, thank you. I only didn't like to watch video to understand layout.
  • (2023-07-19) Suleyman Ali: 🔥 Great. I solved my desired tasks. Thanks Much To The Developer 🔥
  • (2023-05-02) Mikhail Savotikov: Заданные правила время от времени пропадают
  • (2023-03-29) Kelvin Perez: I was going to write my own plugin but this solves my problem i just wanted to inject some CSS and maybe some JS into a page
  • (2022-12-01) Željko Vranić: It would be even better with Export/Import options!
  • (2022-04-21) Damien B.: Obliger de désactiver/réactiver à chaque fois l'extension pour qu'elle fonctionne.
  • (2021-04-05) leonardo Ortiz: excelente opción para paginas de uso frecuente que no tienen un buen contraste de colores.
  • (2020-03-19) JANISHAR AKHTAR: awesome script it works well.
  • (2020-01-22) Victor Rodionov: Класс! Можно редактировать темы для сайтов и делать тёмные!
  • (2019-12-12) Derghi Arrinde: Pretty good functionality, if not a little clunky to edit. One star down for exact domain name matching not allowing us to add CSS to pages based on custom domain name string searched inside domain string of page url. Like for example "oogle.com" matching: google.com, images.google.com, etc. I have made a custom version of this script which allows this by changing just one line inside the inject.js. It is still quite clunky to set up but now it allows me to be more flexible with custom CSS for domains and their subdomains. Please think about adding this to your extension, I'll be happy to give you a splendid 5-star review!
  • (2019-09-21) Leandro Pacheco: Simple and good. I do recommend.
  • (2019-06-10) SzymeX20: just works
  • (2018-04-10) Анна Михельсон: Мусор какой-то. Не меняет стили
  • (2018-03-30) Jáchym Brzezina: Works fine, but... if I add more than 1 script it is impossible to scroll down, the window of the extension stays static and the subsequent scripts are impossible to see.
  • (2018-02-24) Saif Ali: great piece of work, simple and neat. the only missing feature is the settings sync.
  • (2017-09-04) Виктор Виктор: Всё отлично работает, убрал лишнее с сайта и заменил фон.
  • (2017-06-11) Stéphane Benoit: Wow! Perfect! Finally, an extension that does it properly.
  • (2016-11-26) Степан Пляскин: With this extension you can easily add new features to sites that you use, remove useless elements from page like ads. For example, print direct url to video in videosite
  • (2016-11-22) Юрій Співак: Не работает
  • (2016-06-17) Pstrnil737: As a web developer, I've been using this great extension to modify at will some of the pages i visit. The custom stylesheets are pretty awesome, i can make any site look the way i want, for example recently deviantart has been bugging me with a huge alert that i had to close every time. So i slapped a `display: none;` to that element and it's gone forever :D But the true awesomeness comes with the injected scripts, i've been using that feature a lot and it's great! Thanks for this extension, it does exactly what i want and i suggest it to anyone.

Latest issues

  • (2017-07-06, v:0.1.2) The Eye: How To Use?
    How do we add a script into it?
  • (2017-06-16, v:0.1.2) Options page
    I am using the Firefox version. the options page is very hard to use. please put the options page in its own tab
  • (2016-04-19, v:0.1.1) Artem Voropaev: Срабатывает через раз
    Собственно, заголовком все сказано
  • (2016-03-04, v:0.1.0) George Weilenmann: Continuously reinjects Script
    Causes multiple copies of the script to be injected until browser crashes 8(


10,000 history
4.3889 (36 votes)
Last update / version
2024-02-20 / 0.1.6
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