Run Javascript – Chrome Extension Help

Run Javascript is a Chrome Extension that allows you to run custom Javascript each time you visit a website.

It is particularly useful to web developers and people who like to tamper with websites they frequent by injecting additional javascript to manipulate the DOM.

If you don’t always have it, you can get it here:
https://chrome.google.com/webstore/detail/run-javascript/lmilalhkkdhfieeienjbiicclobibjao

Using “Run Javascript”

You are initially presented with a window if you click the Run Javascript icon.

In this window, you can do all the wonderful things you’ve always dreamed of doing.

Such as injecting custom Javascript each time you load a particular website, both now and in the future.

Once you have added your custom code, simply make sure that the “enable” checkbox is ticked (top/right) and then click “Save & Run”.

That’s it! Now every time you visit this particular website again, this code will automatically run.

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justin
justin
29 days ago

draw = function() {
  fill(255, 255, 255);
  stroke(255, 0, 0);
  ellipse(mouseX, mouseY, 100,100);
};
im doing this most simple code, but it wont work! ive done this code a million times before y it not work now?

Muhammad Hassoub
Muhammad Hassoub
11 months ago

great. its gonna be better if i can run script on a specific page of a website not all pages

Muhammad Hassoub
Muhammad Hassoub
11 months ago

great. its gonna be better if i can run script on a specific page of a website not all pages

Wonjoo Ji
Wonjoo Ji
1 year ago

great extension. Thanks

I wish I can enable it by main domain not only sub domain level

Alimin
Alimin
1 year ago

I got trouble in script storage, at the begining I have no problem and everything runing well but when I write 300 line code button save and run not working in text editor please help me to fix this isue

Hòa
3 months ago
Reply to  Alimin

I have the same error