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Reference: Firefox Desktop 139.0.1. See the attached image. What does the overlaid blue (cable with plug?) icon mean on top of my Grid Overlay bookmarklet? The overlay appeared after the update to v139.0.1 (desktop) on Arch Linux. And only on top of my bookmarklet. In case it's relevant. The bookmarklet consists of JS that injects some HTML in the rendered webpage and then beckons my grid overlay. Self developed to overlay my own web layouts.

Until recently (like last week-ish) My Bookmarks Sidebar ONLY showed bookmarks. NOW, within the past few days the "bookmarks tools column" has been added to the screen-view. I have removed the 'tools' but the 'blank column' remains and takes up noticeable space on my laptop screen. How can I remove that 'column' ? Was this caused by a recent firefox update OR a win-365 'auto-update' ? Attached pic of screen - Here at the LEFT side is the 'blank column' with the 'settings Gear' at the bottom of the column. That is the column I want to 'Remove'.

I want to get rid of this icon.

There's an advice/suggestions going around for years based on my search, to disable the reader parse on load config.

It doesn't work, at least not on Android.

And then, we have this other horrible icon for translation. I can't remove that either.

I don't know what exactly developers think but the URL BAR is to show the URL, and smartphone screen size is limited. If that's not the case, just rename it to something like "random enabled features button bar" or something.

Some extensions, like Bitwarden or Notes, seem to have added their own shortcut icons between the settings cog and the other functions below the tabs, with seemingly no way to remove them? I already have them in my regular toolbar / extension overflow, which has much more space available, so I don't see the point of why there's duplicate ones in the sidebar taking away tab space?

I am using the Flatpak version of Firefox on Linux Mint Cinnamon (Ubuntu/Debian) [Mozilla flatpak - 1.0 (138.0.4 (64-bit))].

When I search with Google, a lot of the search results tell me to make changes to /~/.config/gtk-3.0/gtk.css, but I already did that a long time ago, before I installed the Firefox flatpak.

All of my regular apps and Flatpak apps (except Firefox) that I run have correct scroll bars with buttons on the ends.

(With some of my apps, like KDE Dolphin file manager, the buttons are invisible, i.e., the graphical arrows do not render, but if I click in the blank spots at the ends of the scroll bars, the buttons are there and function correctly, even if they are not graphically represented. In Firefox, there are no buttons, visible or invisible.)

It seems to me that Firefox is not using system scroll bars (whereas my other apps do and show correct scroll bars), so I'm not sure that messing around in /~/.config/gtk-3.0/gtk.css is going to help me. Considering that Firefox seems to be using its own (non-system) scroll bars, I thought I would have to do it through about:config rather than my system settings in gtk.css.

Can you please tell me what to change in about:config?

You would think it would be "widget.non-native-theme.gtk.scrollbar.allow-buttons" = true, but it doesn't seem to do anything.

This forum software is not very good. There does not appear to be any ability to preview my post, or enter blocks of code like in other forums.

Here are my modified about:config prefs:

user_pref("browser.aboutConfig.showWarning", false);
user_pref("browser.backspace_action", 0);
user_pref("browser.urlbar.update2.engineAliasRefresh", true);
user_pref("layout.css.scrollbar-width-thin.disabled", true);
user_pref("sidebar.visibility", "hide-sidebar");
user_pref("ui.clickToScroll", 0);
user_pref("ui.scrollToClick", 0);
user_pref("widget.gtk.overlay-scrollbars.enabled", false);
user_pref("widget.non-native-theme.gtk.scrollbar.allow-buttons", true);
user_pref("widget.non-native-theme.gtk.scrollbar.thumb-size", "20");
user_pref("widget.non-native-theme.scrollbar.size.override", 24);
user_pref("widget.non-native-theme.scrollbar.style", 4);

This is the contents of /~/.config/gtk-3.0/settings.ini:

[Settings]
gtk-primary-button-warps-slider=false

This is the contents of /~/.config/gtk-3.0/gtk.css:

scrollbar.vertical slider,
scrollbar.slider.vertical
{
    /* min-width: 20px; */
}
scrollbar.horizontal slider,
scrollbar.slider.horizontal
{
    /* min-height: 20px; */
}
scrollbar,
.scrollbar
{
    -GtkScrollbar-has-backward-stepper: TRUE;
    -GtkScrollbar-has-forward-stepper: TRUE;
}

scrollbar.vertical button.down {
  -gtk-icon-source: -gtk-icontheme("pan-down-symbolic");
}

scrollbar.vertical button.up {
  -gtk-icon-source: -gtk-icontheme("pan-up-symbolic");
}

scrollbar.horizontal button.down {
  -gtk-icon-source: -gtk-icontheme("pan-end-symbolic");
}

scrollbar.horizontal button.up {
  -gtk-icon-source: -gtk-icontheme("pan-start-symbolic");
}

scrollbar slider {
	min-width: 20px;
	min-height: 20px;}

Web sites that have selections in a black box show the choices in purple, which can't be read against the black. I didn't make any changes, this just happened a couple of months back. Can someone tell me how to change this?

Prior to Firefox 137, I could adjust this setting all on my own via about:config `extensions.unifiedExtensions.enabled` and setting it to false meant I could hide this puzzle piece extension button.

However, as of Firefox 138 this about:config setting no longer works. Was the option simply renamed or was the feature just completely removed?

Would appreciate any help, thank you kindly.

My sidebar kept disappearing when opening a new window. After asking the internet, I learned that this was part of the latest UI update. This is a horrible update (sorry programming team) because if you always want your sidebar to show up, all that extra stuff has to show up as well. See first image.

The second problem is that the Hide Sidebar button is too close to the Back button. I keep clicking on the Hide Sidebar button when I really want the Back button.

Is there a way to hide these controls? I know you can move them to the right, but then, so does your sidebar. I don't have a lot of screen real estate. Can we have an option to go back to the "classic" settings for sidebars?

By the way... In the previous versions of Firefox, I was able to click on a link (example: Google search) and my sidebar (in my case with my bookmarks) was always there in the new window or tab. Now when I click on a link, the sidebar with my bookmarks disappears in the new window. I have to keep enabling it if I want to see my bookmarks. I'm 100% sure that this is causing frustration with over 87% of Firefox users. Can we please bring back that old functionality?

Hi, for some reason Firefox doesn't display a lot of fonts for me.

Here's a list of the fonts, that I've found that aren't being displayed: serif xx-large, serif, fantasy, helvetica, Andale Mono, Vera Serif, Vera Sans, Vera Sans

Chrome, Edge and (because why not) Internet explorer all seem to render these just fine

Any help is very much appreciated!

I'm on Firefox 138.0.4; Windows 10

Edit: Turns out, I was sort of the issue.

My main issue was with Sites using Helvetica, as I found the readability of those sites to be atrocious. As it turns out, Firefox was the only one of my browsers actually using Helvetica (I do have Helvetica installed). Sites that have Helvetica first in their font-families would actually be displayed using Helvetica.

I changed "layout.css.font-visibility" to 2 and now those sites just use Arial

So the conclusion is, that I actually just hate Helvetica...

I am losing my vision and any screen I can switch to "dark mode" is a real blessing. I've contacted Earthlink on multiple occasions about providing a dark mode for Firefox and they've said basically "Go pound sand!" The only solution they provided has been to use Edge. I get physically ill even bringing up the POS called Edge. Is there a way I can force Earthlink web mail into dark mode with some kind of widget or coding change we can make in the background of Firefox to get this to happen? Everything I'm currently using is dark mode but this issue with Earthlink.

I am still being plagued by the same rainbow loading bar on Firefox, no matter what device I use, yet you play ignorant like "we don't know why, maybe it's a extension you're using" yet I am not the only one who has experienced it, the post from 2011 never had a solution that worked. It is like LGBTQP promotion shoved down my throat. Why can't I remove this satanic Loading/Progress bar? Why? Why? Why?

Hi, everyone

Some time ago, Firefox started displaying a sound speaker, that replaced the favicon, whenever sound was being played in a tab. (It seems it's an old feature, but I've only ever noticed it not long ago.) The thing is, a few updates ago, the speaker stopped replacing the favicon and appears to the side of it. I preferred it when it replaced the favicon, so I've been looking for a way to bring it back.

With some help from ChatGPT, I was able to get close to what it was, by using the userChrome.css, but not quite. I asked it to create a code to hide the favicon, hoping that would do it, and this is what it came up with:

/* HIDE TAB FAVICON WHEN PLAYING SOUND AND SHIFT SPEAKER ICON LEFT */ .tabbrowser-tab:not([pinned], [sharing], [crashed]):is([activemedia-blocked], [soundplaying], [muted]) .tab-icon-image { display: none !important; }

It hides the favicon, but the speaker doesn't align with the favicon and the tab title is also slightly offset to the right. There's a space or margin somewhere. I tried removing margins (with the help of my technician), to no avail.

Is there any way of getting that previous behavior back?

Thank you.

According to Mozilla and all other online instructions for changing Firefox wallpaper, one must click on the Settings icon (pinwheel) in the upper right corner of a new tab. There is no such icon anywhere on the new tab screen. There is no wallpaper to select under the Settings menu (three dashes) in the top right hand corner. I have the latest version of Firefox. What version are these instructions for? And how does one change the Firefox wallpaper? Firefox is my default browser in Ubuntu 2204 LTS.

First, let me make it clear that I've spent hours on this several times, chatted with some very clever Mac programming folk, etc. Nothing is resolving the issue.

Secondly — yes, I want to use Firefox and not Safari — and, no, I don't want to use the Notes App on my laptop.

I need scrollbars to work for iCloud NOTES in Firefox on my Mac laptop.

(Mind you, I have this same issue on my Windows PC at work, too.)

So ... my kingdom to anyone who can help!

It's 2025 — it can't be that hard to get this to function in a normal & intended way.

Thank you.

The attached image should make my issue crystal clear.

When I open a video in fullscreen mode, the Windows taskbar blocks the video controls at the bottom (as shown in the attached screenshot). I’ve noticed this issue only occurs in Firefox — it doesn’t happen in other browsers. I’ve already disabled all add-ons and started Firefox in troubleshooting mode, but the problem still occurs.

Good morning, I use the 'Minimized toolbar' and 'Hide top bar' options, but when I move the mouse to show the top bar and try to access the favorites by moving the mouse, the bar hides, as if I had left the favorites area, but without having left the area.

Here is a video of the situation uploaded to YouTube. https://youtu.be/s7JyiE2-NrM

In tests, I found that the situation occurs on more than one machine.

I would like the situation to be fixed, because I am using the browser to work and this situation ends up getting in the way, because I need to open the tab several times to be able to click on the favorites.

I await your response, thank you!

hello, is there a way to turn off rounded corners? i cannot find the option anywhere, i'm visually impaired and struggle to see words with the rounded corners as it makes everything blend together. please don't give me the "oh but it looks better" speech, i'd believe you if i could see it, but alas i am here asking how to turn it off.