extension ExtPose

Run Javascript

CRX id


Description from extension meta

Run custom Javascript, each time you visit a website

Image from store Run Javascript
Description from store Run custom Javascript, each time you visit a website. This extension is particularly useful to web developers and people who like to tamper with websites they frequent by injecting additional javascript to manipulate the DOM. Add in any javascript you like and it will automatically be executed everytime you visit the website in the future. jQuery 3.3.1 is pre-loaded, so you can use all the $ magic immediately!

Latest reviews

  • (2023-09-12) Rhett Greenway: this thing worked great until today it wont save anything.
  • (2023-05-14) John and Jane Doe: Works pretty well (despite runtime.lastError; try putting your code in JQuery document ready). I wish it could be set to work on specific pages rather than whole domains.
  • (2023-03-04) Kirill Karis: Great but localhost raises error: "Unchecked runtime.lastError: Could not establish connection. Receiving end does not exist.". And please make it open source!
  • (2023-01-21) Oleksa Yaremchyk: Very useful extention, I've created personal UI for each site I frequently visit
  • (2023-01-18) Bobby Jack: I love the promise, but this currently gives the following error: Unchecked runtime.lastError: Could not establish connection. Receiving end does not exist. Looking for an alternative.
  • (2023-01-04) Jean-Roch Bécart: When this extension is enabled the following error appear in the DevTools console: Unchecked runtime.lastError: Could not establish connection. Receiving end does not exist. Dev, please check: https://stackoverflow.com/a/60323713/4938623 https://stackoverflow.com/a/54686484/4938623
  • (2022-09-13) Ashish Patel: Not running after page refresh, had to manually trigger run from chrome extension
  • (2022-07-17) Mogau Isak: This is the best extension available for this task, incredible work!!!
  • (2022-07-05) Lavanya Mishra: This extension is a bomb!!! Thanks for making it! :D I tried achieving the same thing using local overrides but that wasn't working as intended due to redirects on the website. This extension will save so much of my time. Again, thanks a bunch :D!
  • (2021-11-28) Crowtower: I was going to write my own extension just to rewrite the browser url if certain conditions were met. This little extension saved me the hassle! It works perfectly!. My only feedback would be that the extension icon is a bit ugly haha. Thanks for making this!
  • (2021-09-16) nomadev: Very helpful!
  • (2021-09-14) Kamil R: working as intended. But there should be some feature to make an cloud backup. Would be also good if you add some prefiled event listeners, like run code when page loads, when dom ready etc, because sometimes you have to wait with code until content appears
  • (2021-08-17) ATPoker133 ATPoker133: nice
  • (2021-08-13) Asef Hosseini: pinned icon could be better (transparent) and it gives me this error on console when developing on localhost: `Unchecked runtime.lastError: Could not establish connection. Receiving end does not exist.`
  • (2021-08-11) mostafa abedi: It is a useful tool But I do not know where the data is stored and will not be lost
  • (2021-04-05) bugoverflow: Cool, 10 stars
  • (2021-02-15) Martin Kadlec: This is what I've been looking for. I have few questions though: a) When does the code run? Before anything else? DOMContentLoader? onload? b) If I don't use jQuery is it going to be used on the page anyway?
  • (2021-01-28) Scott Gartner: Does not work in Chrome v. 87.0.4280.141 (Official Build) (64-bit) on any site I tested it (including the author's website).
  • (2020-12-07) Đạt “Wonka” Nguyễn: Tks, It's very good
  • (2020-09-24) Jacob Holz: It does exactly what I wanted and more. Thank you for not making me make this from scratch
  • (2020-03-28) Dylan Rex: does it work for roblox?
  • (2020-01-31) Vladislav Velichko: Very good. Please add hotkey for running my script
  • (2019-09-24) Oguz Onat: I don't usually write reviews for extensions but man, this is nice. I wish it had a way of displaying / exporting the code I'm writing for the pages I visit but even without that feature, it's lightweight and pretty straightforward.
  • (2019-08-21) Syed Arif Iqbal: This is exactly what i needed. thank you for great extension.
  • (2019-04-16) jack donsen: 挺方便的,如果窗口能固定就更好了
  • (2018-10-29) Rishav Rungta: This is one of the best ones out there. Thanks for loading JQuery :) Although it could be better if the address could be more interactive. Example: Instead of run on www.google.com we could do www.google.com/foo/foo optionally
  • (2018-08-17) Statvoo Support: Really useful to be able to always have the same custom javascript executed on a domain. Able to get rid of nag banners and popups really well!


35,056 history
4.2326 (43 votes)
Last update / version
2024-03-26 / 3.0.1
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