Форум сообщества Firefox

My page throws errors in Firefox Nightly such as

Expected color but found ‘undefined’. Error in parsing value for ‘background-color’. Declaration dropped. preview.htm:1:1

and

Expected color but found ‘undefined’. Error in parsing value for ‘color’. Declaration dropped. preview.htm:1:1

The page references ten CSS files besides having dozens of its own CSS declarations. The issue is tha the reference provided to the error (:1:1) does not indicate where I can find the error. That is, I don't know which declaration is at fault. Is there some straighforward way to find the declaration in question?

How do I get rid of these constant firebox pop ups that block tabs that I have open. it is EXTREMELY affecting my ability to use my laptop. I WANT TO KNOW HOW STOP THIS BS

When I send an email using Gmail, Firefox stores a copy in "Sent Mail", another copy in "Sent", and another copy in "All mail" . Why is this and how can I stop this? Or how can I delete two of the duplicated storage locations? Thank you

There are times where I like having the title bar appear on my laptop display of a webpage. Other times I want to take a screenshot of selected page content, and the title bar just obstructs ability to fit the bottom line or two of the page content I want to screenshot. Yes i know I can reduce the zoom size of the page display itself, but sometimes (often) due to the page layout's CSS, this results in both too-small type for me to comfortably read AND even with the text reflow, it's not enough to reveal the extra bottom of page content I am trying to capture.

The Firefox UI controls are very robust and well-appreciated how much customization can be had, but still, the number of steps required to go in and turn Title Bar off is just way too many for quick and efficient workflow -- especially when after getting the screenshot I want, I will want to just turn Title-Bar back on. Surely there must be a way to create an icon option that lives next to Home, Bookmarks, Downloads, Refresh whose function is to actuate a quick 1/2 second toggle off, then a quick toggle back on?

I have payment methods saved. On payment sites, I click on the CC# input box, and I am given the option to use one of my saved payments. I mouse-over payment choice, and it populates the input boxes with the correct information, however once I actually click the payment method, the payment method and all the input boxes are cleared of all contents. I am therefore forced to enter payment information each and every time I want to use it. The Fill Payment method isn't working.

I have reentered and verified the saved payment method several times.

Granted, yes, "human error". But even so, I cannot even imagine what kind of dexterity I would have needed to accidentally change my language settings from English to I'm not sure which language, I thought Thai at first but no, who knows, maybe Cambodian?

Hide some folders and then option to show all folders.

The folder section should have option to hide it and option to show all folders. etc. And also quicker link all profiles on the browser

All of a sudden my new tabs open in "desktop site" and print is tiny. I have to manually go to 3 dots at top right and select button to turn it off. I can't find a setting so my pages open in normal size.

On startup, Firefox will restore my previous session if I had clicked Exit but not if I click the X.

I can restore my previous session via recently closed windows, but I don't want to have to do that.

Is this change intentional? Because I consider it a stupid change, and I would like to get rid of it if possible.

I have 4 rows of shortcuts that are being changed every time I visit a new site. How can I lock them in so they won't be changed and to keep them where I arrange them?

I recently added an entry to my hosts file but Firefox seems to ignore it. I'm using v. 128.5.1esr, fully updated. I've tried a lot of the advice online and none of it seems to work. Here's what I've tried:

disabled "Enable DNS over HTTPS Cleared the DNS Cache changed "Use system proxy settings" to "No proxy". tried troubleshooting mode set network.trr.exclude-etc-hosts to true changed browser.fixup.dns_first_for_single_words to true changed network.dns.offline-local to false restarted FF, rebooted computer

It doesn't work in Chrome either, which makes me wonder if it's a Windows 10 issue. Any suggestions?