Firefox Portable 50.0 - Change Visited Link Color Only Everywhere And Always!!

There is only one thing I want different and that is to override visited link colors on ALL websites and ONLY visited link colors.

It used to be possible to open a Firefox-provided stylesheet and change one line of text and solve the problem. I've been googling but I can't find an answer to how to do it. I think it's Firefox that insists a purple hardly distinguishable from blue, is a good color for a visited link - I disagree.

Can someone point me to how I can change this without having to use an addon? It doesn't seem to be in about:config and Options gives you choices of Always, Never, or 'Only with High Contrast Themes' and changes a whole bunch of things instead of just visited links. I also can't find any .css files anywhere in my Firefox folder, nor files with 'user' as part of the file name.

It's driving me nuts, not being able to do something about it.

Thank you to anyone/everyone who puts me out of my misery!!

EDIT:
P.S. Windows XP Pro SP3, if it makes any difference.

 

Go to Tools -> Options -> Content -> Colors. I've changed both the unvisited and visited links colors on my Firefox.

 

I wish it was that simple...

 

This is what my Options looks like, for Colors: Tools -> Options -> Content -> Colors

I reiterate, what I'm wanting is to override every website I visit with my choice for a visited link BUT not any other choice. As I said in the title, it's the only thing I want to insist on but I want it to apply everywhere. It used to be possible...

 

After going to Tools -> Options -> Content -> Colors, you have to change the 'Override the colours specified by the page with my selections above:' to ALWAYS.

 

And then it overrides absolutely everything on every site you visit, which I don't want. Some sites are well designed and easier on the eyes than black text on a white background and some sites are hard to navigate unless you allow their stylesheet to be used, which is a bigger pain than trying to figure out what I'd like as my default instead of black on white.

I've been using the Always option when I need to be able to spot easily what links I've already visited but I'm getting sick of changing it back and forth when I know there used to be a way to change only the color of visited links, and hopefully... still is.

If there isn't, then Firefox has taken a backwards step and I shall be forced into using yet another addon, when I try to minimise them.

Thanks for the input, though, and welcome to MG, albeit a few months down the track from when you joined.

 

See if post #3 is of any help.
http://windowssecrets.com/forums/showthread.php/142610-Change-links-color-Google-Firefox

 

The behaviour you are describing doesn't happen with me, but I am using installed version 52.0.2.
Sorry it didn't help, and thanks for the welcome

 

I tested this with Firefox version 52.0.2 64-bit installed.

You have create a new folder and a new file within the Firefox profile that you currently use.
Your profile will be here: (for Windows XP)
\Documents and Settings\[Username]\Application Data\Mozilla\Firefox\Profiles\[profilename]\Chrome

chrome is the folder you need to create.

In that folder, create a new text file named userContent.css
Be sure to remove the .txt default extension for new text files.

Put the following code in that file:

Code:

body a:visited { color: #8A2BE2; }

It uses a hexadecimal number for the color setting. That color setting is for purple, which you do not want.
Substitute the color you like. Proper syntax is necessary for it to work.
If the browser is already running, quit and restart the browser.

 

Edit: Correction
To ensure that this declaration overrules others in the CSS cascade, add !important
It is still possible that in some situations this could be outweighed by another later !important declaration,
resulting in a different visited link color, but only within the scope of the later declaration.

Note: the exclamation mark is part of the declaration

Put the following code in the userContent.css file:

Code:

body a:visited { color: #8A2BE2 !important; }