Firefox Community Forum

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?

Like most people, the only reason I stick with this browser is for the ability to set it the way I want. Accepted the "upgrade" to 133 and it screwed my settings. Downgrading did not help. So fed up with this [redacted].

Every time I wake my computer up or start it, I get the attached error about a profile not being compatible. I did switch to the ESR release channel a while back, but I deleted the old profiles; the folder is gone and the profile manager shows only the ESR profile. I have also tried to prevent firefox from starting on startup, but it keeps happening. Does anyone know how to prevent this error from happening, or have any ideas of how to investigate what's going on further?

Out of nowhere I got the sidebar today. An absolutely useless feature that I surely did not ask for. And there is no way of closing or removing it. Please provide a guide, to removing or hiding it PERMANENTLY!

When playing videos in various websites (Jellyfin, Mastodon, Youtube) hypridle is receiving many 'ScreenSaver inhibit' messages that are never cleared.

A similar topic pointed to dom.screenwakelock.enabled being the culprit and disabling that fixed that users issue. But I've done that and the problem persists (It did remove one extra lock, but that was the one that was getting cleared.

Chromium sets and clears 1 lock correctly.

System: NixOS unstable DE: Hyprland

I'm using `exec-once = hypridle >> ~/log.txxt` to monitor the logs.

This behaviour is new in the last few months.

It is only present on one of my two systems that is very similar, they both use the same nixos config. The one with the issue is a i5-4590S based system with no external GPU, the one that doesn't have the issue is a Ryzen 7 5800X3D with RX5500. But that may be a red herring, I don't always update the both at the same time, so they may have different software versions.

Hello, I am running Firefox on a W10-Pro PC. I always click the lock to check certificate validation. In the last month I keep seeing "Connection verified by a certificate issuer that is not recognized by Mozilla".

When I click for more information I see that "Norton Web/Mail Shield" does not recognize the certificate issuer. When I click on Learn More it takes me to a Firefox site "How to disable the Enterprise Roots preference" I also checked W10 certmgr.msc and I see Norton is listed. Images included below. I would love to resolve this issue. Thank you for your time.

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

Autofill Passwords intermittent. One time I go to login on to different websites and autofill works fine the next time nothing. It also seems like every time I open Firefox I have to check the autofill. I like FireFox and I'm trying to get away from another browser that I have no issues with when it comes to autofill. All I want to do is open a website autofill my passwords.

Hi, I hope someone can help me. Please note I live in UK and I have a Desktop Computer but do not have a mobile phone. I use Firefox browser. This is what happened over 2 days Thurs and Friday. 28-11-24 THURSDAY @1.38pm On Thursday morning I used my computer with Firefox browser, and it worked perfectly OK. Then I had to go out shopping @11-15am. When I came back in doors @1.38PM I turned on my computer, it booted up as normal, then a Blue Screen appeared, with a message from Microsoft re back up in Cloud. I have not actually used Cloud before, although I did try to set it up earlier this year but not completed. So, I thought I would try again. This time I tried to register for the first time on cloud, I entered my email address and country, date of birth and then a password. Maybe something else, can't remember.

Then it asked for a code number that it said it had sent to my email, but I could not get that email then as I was stuck in between booting up and the Desktop screen. ( I DO NOT HAVE A MOBILE PHONE) As I did not have the code number, I clicked on, what may have said “not now” or similar message. Anyway, it would not continue so I had no option than to press the back button arrow, top left corner, several times. I think it took me back to the page with choices. I think I clicked remind me in a few days, which took me to the Desktop.

Normally my computer automatically opens Firefox Browser, but this time, I had to open Firefox, still no problem so far and the rest of Thursday OK. I did not try Microsoft Cloud again on Thursday.

29-11-24 Friday @ about 10.15am I thought that when I booted up, it may go back to where I left it Thursday, but no. When I turned on, there was no sign of the Blue Screen or Microsoft Cloud message re Back Up. When computer reached the Desktop, it did not load Firefox but an ERROR MESSAGE. It said. ERROR: PLATFORM VERSION "133.0" IS NOT COMPATABLE WITH MINVERSION >= 132.0.2 MAXVERSION <= 132.0.2 MAYBE TRY TO REINSTALL FIREFOX

It worked perfectly well before I tried to set up Microsoft Cloud yesterday (Thurs 28-11-24) now I cannot load or use Firefox at all, because it comes up with the same message every time. I have tried turning the computer off and back on, no luck.

My worry about Reinstalling Firefox is that I have hundreds of websites saved in bookmarks folders and I am not sure if I would lose them.

At this moment I have had to endure Microsoft Edge which I don't like. Don't put me through any more pain. Can you please help out a pensioner lost in the modern technological world. Thank you David

heb.com i can login, but my password manager takes me to

accounts.heb.com, & it gives me the error message. I went to

heb.com, logged in & saved it. When I looked at passwords again it had

accounts.heb.com, & I cant edit that. I don't know if its Firefox or HEB.

I'm having much difficulty in attaching a article I see to Facebook. Its possible the problem may be I'm not using the right instruction on the Firefox options when I right click the article I want to attach to Facebook. Some of those options are, Save link as, Copy link, when I right click for options. Can someone explain what is the right option to use? And, how do I proceed once I choose the correct option to make that attachment to a Facebook message I'm replying to? There are times a picture of the article will attach to the Facebook message, but the text that is associated with the attachment will not appear? Can someone please help? Thank you.

I am trying to fix Firefox performance issues. I recently changed to Firefox to escape forced ads on chrome and the lost support for the Ublock origin. But I am having difficulty performing tasks and pages That I used to be able to do on Chrome with no difficulty.

When I open multiple tabs at once the tabs freeze up when trying to load and already opened tabs freeze and anything streaming also freeze. It takes tons of time to load multiple tabs and even sometimes single tabs depending on the website. This never happened with Chrome and I understand Firefox is not as refined as Chrome and is far younger than Chrome is but I feel like it shouldn't be this bad. Is there any settings maybe or maybe settings/preferences in the config area area that might help with faster performance and increased multitasking ability in the Firefox browser?

I have tried

1. Updating Firefox - I am running the most up to date version 2. Updating Graphics Drivers- I am running the most up to date drivers(Updated yesterday 11/17/2024 3. Deleting Cache/History/Logs 4. removed or disables unneeded extensions that I don't use every day and only activate when I need them.

None of this has worked to increase performance.

P.S. I would also like to fix the problem where firefox is using too much RAM if possible.

Can anyone help me Please? And if possible please give as many solutions as you can find or know so I can implement them quickly.

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?

How do I stop it from appearing please? It's the address bar.. field. I don't know what to call it, english is not my native language. I just want it to remain small and static like it always did. Now it becomes a huge field that takes up too much space and blocks my vision and I just want it to disappear.

I wish Firefox would stop changing stuff like this.

Hi Everyone,

ever since the latest Firefox update, the "read more" feature on LinkedIn pages (personal pages, not the feed) does not show up anymore, at least not for me - the feature allows you to expand the various subsections to read their full content.

I opened LinkedIn on Chrome and Edge to see if it is indeed a browser issue, and it's working fine over there. I also did some troubleshooting (refreshing, clearing cache), but to no avail.

Does anybody else have the same problem?

Thank you!

Via W

HI! I have my phone synced to my destop firefox, and just synced my laptop, microsoft windows 11.

everytime I want to access a synced page, like gmail, or my trading brokers page, it asks me to login again, so its synced, but have to relogin every time I open the firefox browser, or even when I simply close the tab. I never have to log in repeatedly on the desktop.

Also, my favourite extension Tab Stash, is missing features in this firefox browser. I have tested everything to get it to work, including clearing the cache, restarting. normally you can right click a firefox tab like the attached image, and choose "open Tab Stash in a Tab". and other options. but they dont show in this synced version of the browser. Very weird and frustrating. I must get this to work as I manage hundreds of saved tabs and folders through Tab Stash which is only available on Firefox.

I dont know how to contact the extension creator, I cant see any contact link on his gitHub.