There is a an "advanced preference" which you can change. In a new tab enter about:config in the url bar, accept the risk and find this setting: layout.css.devPixelsPerPx The default value is -1.0. You could try changing that in increments of .5. A value of 1.0 may suit you. If that doesn't help, you can use a file called userChrome.css which you would create with a text editor. Are you willing to do that?

Thanks TerryN21. I tried a range of values from -3.0 to 2.0 and it just got smaller, with the smallest being at 2.0, and -3.0 not being any larger or smaller. I did restart the browser between each setting.

Is there any negative implication to using userChrome.css? If not, I'm not averse to trying that.

Ivy

I don't know of any negative implication. I have been using a userChrome file for 15+ years. https://www.userchrome.org/how-create-userchrome-css.html

I have the following code to increase fonts in the browser itself. The marks /* */ around the first line indicate that line is comment, not code.

/* global font */
* {
  font-size: 13pt !important;
}

Hi TerryN21,

What do I do with the file once I've created it?

Thanks, Ivy

Oh, never mind, TerryN21 - I just noticed the link you posted!

By the way, the forum modified that code, it should be:

I don't know of any negative implication. I have been using a userChrome file for 15+ years. https://www.userchrome.org/how-create-userchrome-css.html I have the following code to increase fonts in the browser itself. The marks /* */ around the first line indicate that line is comment, not code.

/* global font */
* {
  font-size: 13pt !important;
}

Just for reference, what is the default font size?

Thanks All! That userChrome file worked!

never mind - found it - OK, now that that's improved, I don't suppose you can tell me how to do the same for all of the apps I'm running?? :-))

Just for reference, what is the default font size?

On Windows, tabs use the Segoe UI font at 12 pixels (3/4 of the default size used for web pages, which is 16 pixels). I don't know about Mac/Linux.