How do I change words and text on firefox internet?

[Jay]

Is there a way to change the text on internet websites in Firefox?

Like a text editor or something that you can use on websites where if you change it, only you can see it and it doesn't really affect the website itself.

I already tried

j document.body.contentEditable = 'true'; document.designMode = 'on'; void 0

but it doesn't work.

[Ethan]

Right click on the body of text you want to edit and choose "inspect element"

[Fred]

No. Of course you can not alter the displayed text. Otherwise no web site would be safe.

[Dominic]

You can but it's only temporary. If the page were to be reloaded then your changes would be erased when a new copy of the site is downloaded.

Open the Web Console using Ctrl + Shift + K. It can also be accessed by clicking Firefox, Web Developer, Web Console.

Click the Console button then and new pane will pop up at the bottom of your browser window. Click next to the blue >> to put your cursor in the box then type document.body.contentEditable = 'true';

Now you can edit the page.

– Dominic