Not sure what your describing Library Panel are you talkin Browser min/max size? If so did you read this help.

https://support.mozilla.org/en-US/kb/changes-toolbars-and-window-sizes-are-not-saved

See also:

• /questions/1396924 Library window cannot be sized smaller than HUGE, Firefox 107.0 64 bit Windows 10 Pro

Hi, the Library window (opened using Ctrl+Shift+O or Ctrl+Shift+H or Ctrl+J) does have a minimum width.

(In the U.S. English build, it appears to default to 700 pixels. If your display is enlarged, for example, by 125%, it probably occupies 700 x 1.25 = 875 physical pixels.)

I'm not sure what you mean by a 1:1 size -- how are you arranging your windows? (I'm familiar with using the Windows key plus a left or right arrow to take over one half of the screen, but I think you mean something different.)

Mozilla recently started up a new "Ideas" site at https://connect.mozilla.org/ for product suggestions. I think if you have time, it would be a good idea to post there (in the "Ideas" section) to get into the current feedback stream.

In the meantime, you could consider using a style rule hack to reduce the minimum window size. This is an unofficial, community-supported option implemented through a userChrome.css file. Because Firefox style rules change from time to time, there's no guarantee this will continue working down the road, but if you need immediate relief...

Example rule:

/* Reduce the minimum width of the Library window to a small value */
window#places { min-width: 100px !important; }

Information on implementing a userChrome.css file:

• My site: https://www.userchrome.org/how-create-userchrome-css.html
• Community site: https://www.reddit.com/r/FirefoxCSS/

If you want to decrease the min-height from its default of 500px then add a property value to adjust this property.

window#places {
 min-width: 100px !important;
 min-width: 300px !important;
}

>If you want to decrease the min-height from its default of 500px then add a property value to adjust this property. [...]

Thanks for getting to the root of this, I will apply that edit once I catch my breath (and after reinstalling 107 for the millionth time).

What a monumental waste of our time. And it's good to know I'm not the only misfit around here. <g>

I already have a chrome dir. And, a userChrome.jsm javascript file.

What to do?

Will there be a conflict between userChrome.css and userChrome.jsm?

Hmm... fun, fun, fun

Oh, this is incredible.

I created userChrome.css -- hoping it wouldn't conflict with anything else in the existing chrome dir.

Nothing happened [WRT the Library box sizing issue] when I restarted FF.

So, I went and looked at the tutorials, and lo and behold, I have to edit toolkit.legacyUserProfileCustomizations.stylesheets via about.config -- only one problem: One of the various (ahem) "fixes" to 107 is the inability to ACCESS about.config!

Instead of bringing up the config editor (or even the lame warning about it), I am instead taken to a duckduckdckgo search query page FOR about.config!

Clearly, I need a better grade of wall. I'm thinking "cement block" may do the trick. I've NO confidence in the drywall panels to put me out of my misery...

I coulda swore that I already DID access about.config with 107! Since this was a few hours ago, though, I've no REAL idea if I actually did access it. Burnout sucks.

I'm not sure if you are typing it with a dot or a colon, it needs to be a colon:

about:config

I'm not sure if you are typing it with a dot or a colon, it needs to be a colon: about:config

Yeah, you're right. Major league brainfart here. A nap helped. <g> (Getting ready for some very nontrivial surgeries (plural) while putatively recovering from a heart attack -- and my second case of covid -- doesn't help much either. Feh.)

Here's what I ended up with:

window#places {
  min-width: 700px !important;
  min-height: 91px !important;
}

I used the example code a few posts above, changed the second min-width to min-height, and then iterated my bloody way to 91px, which makes the minimum height an exact match for a single downloaded file tile.

BTW, it does NOT keep the download files between restarts -- it seems to do an automatic "Clear Downloads" flush. Is there some way of making the list of downloaded files persist? While I normally flush manually after moving a downloaded file to its intended dir, there are those rare occasions in which I'd like to keep the list handy.

Does anyone know if this fix will need to be re-applied each time I do an update to the next version? Common sense would suggest that I shouldn't need to do that, but common sense would also suggest that the downloaded file list should not execute "Clear Downloads" on its own. For that matter, common sense would suggest that it would be madness to suddenly enforce a HUGE minimum size for the Library box. So, as my late mother was wont to say, "There's nothing common about common sense."

In any event, I want to thank everyone who's helped me with this mess. I really hope moz is listening to all the grief their various "improvements" in 107 are causing people.

BTW, it does NOT keep the download files between restarts -- it seems to do an automatic "Clear Downloads" flush. Is there some way of making the list of downloaded files persist? While I normally flush manually after moving a downloaded file to its intended dir, there are those rare occasions in which I'd like to keep the list handy.

As long as you do not set Firefox to clear history when it closes, your downloads list should persist for at least a couple months. If Firefox isn't responsible for the clearing, possibly external privacy tools could be doing it.

Does anyone know if this fix will need to be re-applied each time I do an update to the next version?

Now that you have taken direct control of the min-width and min-height of the Library window, changes in Firefox shouldn't have any effect on those parameters.

As long as you do not set Firefox to clear history when it closes, your downloads list should persist for at least a couple months. If Firefox isn't responsible for the clearing, possibly external privacy tools could be doing it.

Any idea what could be causing this? The only change I made was to create that .css file, its only content being what I posted above. (Well, that, and the about:config line (toolkit.legacyUserProfileCustomizations.stylesheets) being toggled to True.)

jscher2000 - Support Volunteer said

As long as you do not set Firefox to clear history when it closes, your downloads list should persist for at least a couple months. If Firefox isn't responsible for the clearing, possibly external privacy tools could be doing it.

Any idea what could be causing this? The only change I made was to create that .css file, its only content being what I posted above. (Well, that, and the about:config line (toolkit.legacyUserProfileCustomizations.stylesheets) being toggled to True.)

FWIW, I can't think of any external privacy tools.

As far as I know, there isn't any other feature to automatically clear download history. ??

I guess I'll consider it a bug.

I really wish fixing bugs was more important than adding "features."

Of course, it's not an exclusively Mozilla crazythink. MSFT is as guilty (or more so), and I suspect the same can be said for nearly all "market-driven" companies.