How to change the font on this forum/website? Few days ago was ok, but something happened and now it is a font that I find hard to read(for me)...

The quickest way might be to change it in your web browser preferences. Some web browsers have an option for a default font and size that is used for all websites when a website doesn't specify a font of its own. Conveniently, there is typically also an option to enforce the default font you've selected even when a website has specified a font of its own.

That means if your web browser does have a preference setting for the default font, then you can choose a font that you like that can be used for all websites. Then you can use the option or checkbox for enforcing the default font whenever you want to override the font on a website, and then deselect the option when your okay with the fonts on a website. It won't necessarily be pretty, but it would make things temporarily readable.

It would be nice if that toggle button was more convenient located on the toolbar of browser window rather than in the preferences of web browsers. However, going in and out of preferences to select the checkbox has been pretty manageable for me when I've had that option.

Currently I use Safari and it doesn't have that option. Instead it offers setting a CSS stylesheet which can be used to change the font and just about anything else. I think the font setting I described above is simpler.

EDIT:
I just realized that there is sometimes an additional web browser option to specify a minimum font size. In that case, the font stays the same but the fonts will never be too small. That might affect the layout, but at least it would be readable. And the minimum size might be an option that you wouldn't feel a need to change as often as the font-family itself.

Chrome allows you to change font via Settings, Advanced Settings then Web Content.

Or you can just use Ctrl and mouse wheel to change font size.

Since GOG aren't content with the default font and just set "sans-serif", but instead set a specific font to use (seems to be Open Sans, by the way, with a generic sans-serif as backup), I don't think changing the browser's settings for default fonts would matter (perhaps the size settings would). Instead, I think setting up a local CSS file is the way to go.

I suggest the Stylish add-on for Firefox, Chrome, Opera, and Safari.

I think the previous style sheet said to use Lucida Grande, ​Arial, ​Verdana, and the generic ​sans-serif, in that order.

A stylesheet to get it back as it was:

body {
font-family: "Lucida Grande", ​Arial, ​Verdana, sans-serif !important
}

You can, of course, switch out the list of fonts for whatever you want to use (come on now, I know you really want comic sans), just make sure to use quotation marks if your preferred font has whitespace characters in their name.

Tnx, I will look at this thread, I use Opera as browser...

Everyone keeps talking about the new font, and I still can't see any difference :D

me either

Thanks so much for recommending that extension!!! There was one available called DarkGOG and made the background even darker which added a great contrast to the white text not to mention the choice to pick a different font, size too even.

To change it for just this website alone, you can install a web browser addon such as Stylish, or Greasemonkey for Firefox, or the equivalent addon for Chrome or whatever other web browser you might be using. Then you can create a new configuration for the GOG.com website, or just the forums section and customize the cascading stylesheets to your preference, such as changing the font family/size etc.

If you're not a web developer or not comfortable with this level of technical customization, someone else might be able to help do this for you perhaps. This is the only way you can change the font on a single webpage, website or base URL etc. The only other way is to change the fonts in your browser configuration, but that will change it for all websites, and generally will break a lot of websites out there which were not written in a way to work well with user overridden fonts.

I would suggest that the easiest way is using Stylish with Firefox or equivalent, and specifying an alternative font family.

Yep, that's what I did (changed the Firefox minimum font size to 13). It's a simple solution that works rather well. :)

I tried the Stylish extension using {font-family: 'Lucida Grande','Geneva','Arial',sans-serif !important;} but for some reason it didn't change the font. Is there a Greasemonkey script to fix the font instead?

It's because you missed "body" in front of all this.

Before I had only pasted part of the code. The whole code I tried was this:
@-moz-document domain("www.gog.com") {
body, .text_1 {font-family: 'Lucida Grande','Geneva','Arial',sans-serif !important;}
.post_text_c, .quot_text, .pages, .text_1 {font-size: 12px !important;}
.topic_s {font-size: 11px !important;}
}

But it looks like Stylish does not work with Firefox v52 or greater. I tried another Firefox extension called "StylRRR" and that one seems to work.