Menu Zoom and NoScript in FF Quantum

[Zang]

I've noted that the pop-up menu (when you click on the "S" in the menu bar) is zoomed in at roughly 150%. If I hold down the Ctrl button and scroll the mouse while over the pop-up menu, the size can be reset back to normal. but as soon as I click off the menu and re-click on the icon, the zoom goes right back.

I have the zoom for the web page at 100%, it's just the pop-up menus that are over-zoomed (and hide some of the info).

Any thoughts, or is this perhaps a Firefox Quantum problem? Obviously it's hard to tell since the new NoScript add-on and the new browser version have been released about the same time, but maybe someone has an answer (I've researched it, but it has not revealed anything so far, BTW).

Thanks in advance!

Zang

[Zang]

So, I'm replying to my own post, only because the fix is a bit obtuse, and I'm not sure WHY it's a fix...

The fix is to go into "about:config" and change the layout.css.devPixelsPerPx value from -1.0 to 1.0. I'm not sure why this is an issue, because one of the things I did after the original post was to install NoScript on a different computer, and there the menu zoom was fine. Ironically, however, the above value is still at it's original value of -1.0 on that machine, so... I'm confused.

Anyways, I changed that value on the problem machine, and the browser appears to work fine otherwise, so for now I'm going with it. If anyone has any better solution, or knows why that "fix" fixes it, I'd like to know. I'm not a fan of changing settings and not understanding why the change works.

Zang

[Zang]

OK, one last time to reply to myself.

Here's the deal... I had a dual screen setup with one smaller than the other. The one screen had the Windows 10 text zoom setting at 125% (smaller), while the other one was at 100% (larger). As long as I set them to be the same (regardless of zoom level), the menus looked normal. If one was different, the menus went askew.

Of course, that's a bit annoying since the zoomed one was the laptop screen, where reading the fine print can be a PITA if at 100%, but I'm not old and blind enough (yet) that the zoom level on the 32" secondary screen makes sense (it's like being in the front row of a movie theater).

FWIW, it's odd that it didn't do this before, but I'm guessing that Firefox 57 is now taking more of its font sizing 'cues' from Windows 10 directly, and hence the discrepancy between old and new functionality.

Anyways, hopefully this helps someone somewhere down the road.

Zang