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I get the following message when going online with Firefox: "The bookmarks and history system will not be functional because one of Firefox's files is in use by another application. Some security software can cause this problem." I've followed all the prompts to restart the computer, refresh the computer, delete the favicons.sqlite and places.sqlite and it won't allow me to delete them. This happened yesterday as well. Yesterday I could delete those files and everything was restored. But today I can't get it to work.

Hello,

I like using Firefox browser every day. After installing and running Avast antivirus protection (program version : 24.3.6108 (build 24.3.8975.832)), Avast notification always show this message every time I start up Firefox : please check the uploaded images : FPA Scam.jpg.

I already checked the extenstion, the Settings, and the Advance Settings of Firefox browser. I'd like to know if there is any parameter related to engine.forexpeacearmy.com and it is enabled. Unfortunately, I can't found any related parameters.

So, I decide to contact Firefox support to find out what happen to my Firefox browser, why it always call the forexpeacearmy site at the start up, and finally I want to remove it. Because I'm affraid it could be some kind of trojans / malwares and put my laptop into risks.

Kindly need your advise. Thank you.

Kind regards, Gideon

I want to acess fundednext.com on my phone and laptop using firefox It says not secure I want to access it anyway.

Dear People --- FIRST: I apologize for taking so ling. I had physical probs, that kept me from coming back. SECOND: I'm afraid that I can't solve this problem with the advice provided. There was a file mentioned [which slips my mind, and I can't look for it with out leaving this screen] that is supposed to be on my desk top. I couldn't find it, so things stopped there.

SO..... I'm reiterating my problem: I loaded an "update" to Firefox that was supposed to get around the obnoxious "THIS BROWSER IS NO LONGER SUPPORTED" message I'd get on certain web-sites [such as the Milwaukee Journal]. I never understood that, as I am careful to update programs, when the updates are available. SO: While I was on the Milwaukee Journal Site, I clicked on the "Firefox Update" that the Journal's site recommended. What happened was I got the Current Version, and LOST all of my add-ons. After problems I can't go into here, "The Cat's Back." Please advise whether I can get things back after this much time.

N.B.: I'm running Windows 10.

THANKX! C M The Gray Cat

In numerous cases i have found not to be beneficial when website's search function is activated on Ctrl+F keyboard shortcut and where is better to use regular Firefox on-page search instead. I think that the good site has search button/area visible so i can use it when needed.

So please how to disable Firefox's search (Ctrl + F keyboard shortcut) to activate website's internal search? I want to always use regular Firefox on-page search that i now trigger by left Alt (to show the FF menu), click Edit menu, click Find in page.... (since Ctrl+F is occupied by website's internal search).

Hi thanks for clicking.

I'm on Linux, Zorin OS, which is Ubuntu based if I'm not mistaken, very new to Linux.

Anyway, I've made a userChrome.css and done some changes I like to Firefox. It has been working fine until I tried to change the tab bar's overflow shadows when there are more tabs than there is space in the bar.

The rest of the css edits I've made in userChrome.css works fine but this overflow shadow reference Firefox just doesn't grab. I can live edit with the Toolbox and then it works fine, but when opening Firefox as default this css definition is as if gone.

Image 1: after live edit with Toolbox Image 2: before live edit with Toolbox Image 3: my userChrome.css

What can I do to fix this?

Thanks / p

I've disabled all of my addons, cleared cache, and still youtube is broken for me. It works fine with Chrome still. Any ideas on how to fix? See attched screenshot.

Microsoft Security Essentials detect multiples times Trojan in Firefox setup. By Uninstalling and reinstalling, the issue was not resolved.

Refer screenshots - https://prnt.sc/Ws33iJcTrTf4 and https://prnt.sc/qGtwazGiX9ft

Category: Trojan

Description: This program is dangerous and executes commands from an attacker.

Recommended action: Remove this software immediately.

Items: containerfile:C:\Users\SYSCOM\AppData\Local\Mozilla\Firefox\Profiles\8dgf2yxz.default-1714042762339\cache2\entries\DC4B6FD7DF61D36E6E04BFC4DB2700E143AD5C51 file:C:\Users\SYSCOM\AppData\Local\Mozilla\Firefox\Profiles\8dgf2yxz.default-1714042762339\cache2\entries\DC4B6FD7DF61D36E6E04BFC4DB2700E143AD5C51->(GZip)

What has happened to all of my Task Bar / Tool Bar? As of today, Sunday Nov. 26th, everything is gone. In addition the browser itself looks "different" some how.

My Firefox browser recently updated to 115.11.0esr (64-bit), and now embedded videos won't play, I can initially see a picture, but instead of starting to play, the screen turns dark green and I can only hear the sound. This happened once before recently, but then it seemed to fix itself after a week or two. How can this be fixed?

I don't know what happened because the browser was working fine earlier this morning and I didn't do anything to compromise it. I didn't go to settings and change anything. I suspect someone may have 'hacked in,' if that is still even a 'thing.' I think this because when I try to shut off my internet temporarily someone turns it back on and I usually have to 'fight' with whoever that is to get my internet to go off. I tried to ask google a question I wanted the answer to. That question was, how long does the flu last (because I have it or covid.) I also asked how long does covid last. What happened was that spinning thing where it was continually searching but never going to the site. Can you help, please? Thanks in advance if you can.

I'm running the latest FF under Win7. Seems that whenever I go to the Merriam-Webster (dot) com site, after a few seconds, my disk activity light goes solid, and the FF CPU usage spike to 10-25%. One time, to regain control of my system (because everything seemed hung) I actually had to resort to the physical power-down switch. Obviously I immediately ran a virus scan upon coming back up (scan showed all okay). Now, if I stay away from Merriam-Webster, FF behaves normally. But it's a damned dictionary site. I occasionally will need to use it or stumble into it. I've used MW in the past without problems. Does anyone know what's going on?