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All of a sudden today the top of Firefox turned purple, I'd like it to be plain white as it was previously. Clicking on Themes did nothing to change it. Thanks for your help

The address bar/tool bar height is too narrow. It's hard to read. There needs to be a way to change it At the same time change to font size to something a bit larger

Hi!

I am using the add on 'sidebery' for vertical tabs and I am so happy about and so gotten used to it! (No, sorry, I don't want to use the built-in option)

Today I updated to FF 157.0 and saw this annoying part in the sidebar (as seen in the image attached)! WTaF? o.O I didn't ask for them to take up space in the sidebar that could fit almost TWO vertical tabs! Can I somehow make it go away? Or do I have to contact the creator of 'sidebery' (which I don't think is the culprit)?

userChrome.css 'trick' with

1. sidebar-header #sidebar-box {

   display: none !important;  

} won't do either.

Thank y'all very much!

Good morning. I’ve noticed that with some themes (like Firefox’s Alpenglow), the top-left corner isn’t rounded, so they clash with the new Nova UI. Does anyone have any suggestions to fix this, or is an update from Firefox needed?

Help! appearance for fire fox browser changed? out of a sudden I have menu bar tabs above my horizontal saved tabs.how delete this? reduces my screen sight and I do not want this at all. 'See attached screenshot ..ABOVE my saved Tabs with web site logos are tabs in white letters namely : File, Edit, View History and more. I don't want that there; it makes my screen sight smaller. How change this to have them gone from there?

First, apologies if this is the wrong forum. This is about the FF Developer edition browser.

It used to show the browser width counter in the top right corner when you resized it. Now in the latest version I no longer see this. How can I get this back? It's a great feature!

Attached is what it used to look like. I don't know what version it appeared in and which it disappeared in.

Thanks!

I have issues discerning where each of my desktop windows are. To help with this I use gtk.css styling to add a border on all of my desktop windows. For some reason, Firefox does not draw this border.

Is there any way to apply a border around the Firefox window?

I was able to get a border around the navigation area of the browser by adding a userChrome.css file but I don't see any way to do the same thing for the whole window.

Can this be done in userChrome.css? Using gtk.css styling? Any other setting or file?

I am running Firefox 155.0.1 on Ubuntu Linux 26.04.1 LTS using the Gnome 50 desktop.

I've been using Firefox for a couple months now, and I just ran into this problem today with English text nearby Japanese text: https://files.catbox.moe/diw4y3.png

• It's not affecting Japanese text
• It's not exclusive to Japanese websites (it's present in one email in gmail, but not all of them)
• I haven't seen it on any Japanese websites
• It's also present in some add-ons that generate text (Checker Plus for Gmail, Yomichan)
• Turning off all add-ons doesn't fix it, but opening the page in a private window does fix it

Firefox 155.0.1 (64-bit), Windows 11 Pro

I am on version 155 of the browser, and the sidebar is not showing up for me. Clicking the sidebar toggle button also does nothing. I've tried going into settings and toggling the show sidebar option, but that also doesn't do anything, as if the sidebar feature doesn't exist. Toggling vertical tabs just makes the tab bar disappear, and I've tried both the options menu and right-clicking the side bar toggle button. Is there an error, or am I missing something?

I noticed that my Tab background color doesn't change after recent Firefox updates.

I have this code (css - chrome) to change the color of the active tab to green and it no longer working.

/* Start code: Change color of active tab to Green and the inactive to default*/ tab[selected="true"] *{ background-color: #00c100 !important; /*Green */ font-size:10pt !important; font-weight: 650 !important; color: black !important; }

Any help in fixing this is appreciated. Regards,