Firefox Community Forum

I have received 3 system alerts, all from Mozilla Firefox (I use Firefox as my default browser). 1) System is infected!---click on d45n9f8ko90s738b610.gsx-protect.co.in 2) ZEUS.2020 Trojan detected--with same directed site 3) System Alert!---with same directed site.

I use McAfee as my security system. They recommend going to Firefox settings and disallowing random site connections. How do I get my system running again.

Latest McAfee scan shows 45 entries deleted and 2 browsers reset

Something very bad happened to me today (11/3)....

Firefox 144.0.2 was installed on 10/30/25, and everything has been fine until today. I don't know why or how, but ALL of my OPEN tabs (of which I have many--and have it fixed so they always re-open when Firefox starts), ALL went away.

In reading conventional steps to recover such from sessionstore-backups, those instructions sounded straightforward. However, even though ALL FIREFOX PROCESSES were ended, I could not copy the contents of the sessionstore-backups folder nor could I delete anything--EVEN THOUGH I am the owner.

Even after providing Admin perms.

I could get rid of profiles.ini, which initially proved diasterous, because then Firefox thought I was brand new, so ALL of my passwords saved through Firefox these many years, went "poof".

Fortunately, I was able to get that back, but I still cannot get all of my tabs back, and conventional instructions to do so aren't working.

After recovering from my heart attack for initially losing my passwords, I am breathing a little better right now, but it sure would be nice to get all of my open tabs back again. I don't know why I am not able to manipulate the files within sessionstore-backups. I think if I could eliminate the files in that folder EXCEPT for upgrade.jsonlz4-20251027123126, which possesses a 10/29/25 date, these should be the open tabs just before the 144.0.2 installation, and all should be right with the world, once more.

I have performed/examined many steps offered under this category, but most assume I can copy them elsewhere for safe-keeping and/or removing all but the one I want Firefox to "use". Because something is preventing me from doing this, though, I am being stymied in what ought to be the solution. As a test, I was able to copy files from a much older profile--so I can prove the basic steps SHOULD HAVE worked. Unfortunately, I cannot do the same with THE (more recent) folder in question. I can't get rid of parent.lock, either (and I have ensured no Firefox processes are running via Task Manager).

Repeatedly.

Something else is at work, here. Any help or assistance from community experts would be most helpful.

Thanks very much in advance.

-MG

image of problem Some, but not all, pages browsed throw up a "hamburger" menu, top left of the window. (the link above should link you to a screenshot taken this morning in Firefox 142.0.1 (64) running on Win11.)

The menu button floats eternally over the text in that top-left corner. This irritates me because I read text, and am frustrated by the browser covering readable text.

I can't remember ever (20+ years) needing the Table Of Contents of a web page. I use Mozilla Firefox's excellent Edit, Find if I want to jump directly to a key word.

Anyone who can suggest a perpetual dismissal of this menu button will earn my lifelong admiration!

I can deal with Settings, About:Config, and even RegEdit. Thanks, Chris

Hello.

After the recent update that added profiles to Firefox I have gotten them working on my personal computer but not on my work pc.

The option for creating profiles showed up once when launching the browser but I had to dismiss it at the time. Now I can't find the option to create profiles any more, I have followed the guides that mozilla have put out but the option physically is not there.

I have also tried reinstalling Firefox but that also did not work.

what do?

Thanks.

Hey, I am trying to synchronize my mobile tabs with my desktop app. Unfortunately, this is not working. I am using the latest version of Firefox and Windows 10. Any ideas how and if I can solve this problem? Thank you in advance.

Since the last update, the firefox taskbar icon is showing a strange shopping card icon? How can I remove it? I am not shopping with Firefox, I am using it as my web browser.

Just built a new PC and using Win11. I like to have a pinned tab in Firefox playing some kind of media to have background noise. Since new build, whenever I am not 'focused' on that tab and doing other tasks, audio from that tab will cut/fade in and out.

I've been working on this for 16 hours. I've googled, binged, even yahooed. No answers. Checked and rechecked all settings, both system and browser. Uninstalled/Reinstalled *many* applications, including Firefox. My OCD won't let me rest till I have this solved.

Thanks for the help.

Recently, when I open a new tab in Firefox (Windows) I started getting a drop-down box for Google instead of shield, lock, and sliders followed by the query/address bar. See attachment. I have no way to drag and drop this search query address. If I follow this by clicking on the search icon in the Google query field below, I get the normal Firefox address bar with the lock icon and the ability to save the query address by dragging and dropping the lock icon. How can I get back to the normal Firefox browsing address bar.

Hi,

I'm having an annoying glitch since the recent Firefox update. Now, when I am looking at a webpage the tabs at the top of the screen disappear and the webpage automatically maximizes and, to see your tabs you have to hover at the top of the screen to see them again. I do NOT want that! I want to see my tabs at all times! How do I change the settings so that I can do that? I sincerely hope that this "improvement" can be deactivated!

Since a month or so, Firefox browser freezes when playing youtube videos. Simply closing the app and restarting won't do the trick, I am forced to open the WIN Task Manager and manually "end task" before I can watch youtube videos again ... until an hour later, or lucky a day later, the same drama unfolds. I run the newest version of each, Firefox and Windows 11. No new extensions or plugins have been added recently. What is to do here? I'm since Netscape on this route and would hate to switch to another browser... :-) Thanks in advance!

Each time I open Firefox a black symbol appears in the upper right of the Firefox Icon. This began several days ago. What does the symbol mean? See attached image. Is there a way that I can remove this?

The computer has rebooted from a bugcheck. The bugcheck was: 0x0000000a (0x0000000000000030, 0x0000000000000002, 0x0000000000000000, 0xfffff80274225392) CAUSE WAS FIREFOX.EXE

The computer has rebooted from a bugcheck. The bugcheck was: 0x0000000a (0x0000000000000030, 0x0000000000000002, 0x0000000000000000, 0xfffff80274225392) CAUSE WAS FIREFOX.EXE

I have contacted Microsoft. After testing the link/page loads in Edge, Chome (with and without addins same in ff) and Brave. But does not load in FF (with addon's disabled) nor in Private browsing FF (no addins obviously) they said to reach out to FireFox for support. See below for email exchange: FROM MS (most recent reply):

Thank you for your response. We hope you are doing well. We sincerely apologize for the inconvenience and frustration this issue has caused, especially with the unexpected autoplay of music and the inability to exit the slideshow in Firefox. We completely understand how disruptive this can be, particularly in quiet environments or when you're on the go. Based on your detailed testing across browsers, it does appear that this issue is isolated to Firefox. Since the same content works as expected in Chrome (even with ad blockers enabled), the problem may be related to a recent Firefox. As the issue appears to be specific to Firefox, while the same functionality works as expected in other browsers like Chrome (even with ad blockers enabled). We genuinely want to help resolve this, but since the issue is browser-specific and not reproducible outside of Firefox, we kindly recommend reaching out to the Firefox Support Team for further assistance. They may be able to identify any recent updates, settings, or compatibility concerns that could be affecting the page behavior. We are truly sorry for the inconvenience and are grateful for your understanding.

MY EMAIL TO THEM (in response to them saying try in edge private etc): Apparently this is a FIREFOX only issue?

I tried in edge (regular, not private) and it plays the stupid slideshow with music just fine, and I can get out of it and view the regular memory page that I want (Music really!? What if you’re viewing while someone around you is asleep? Or otp in public??? Smh) Chrome – WITH Adblockplus and Ublock Origin ON it works (not in private) > weblink gyazo video of it working with ublock and abp enabled…. https://gyazo.com/2afbdf7e27357a375ca7613b197f17ce Firefox – with adblock plus off, ublock off, and ghostery OFF does not work > weblink gyazo video of it just refreshing grey, black grey black and goes nowhere forever https://gyazo.com/8da9258f36457901df66f99e87fe7560 Firefox – in private browsing (no addons) – does not work > weblink gyazo video of it just refreshing grey, black forever https://gyazo.com/f9119907e5127ede48797d9eacb1fed6 Since attaching a video to an email would be very large.. hope you can click outside links 😉

Each day I get an email from Microsoft OneDrive with photos of the day, titled On this day"'. Clicking on a button titled "View all memories" on the email causes the photos from that day to appear as a new tab on Firefox. Perfect. Until a couple of weeks ago.

At that time, clicking on it caused the new tab to appear but no photos are displayed. The screen looks as if it's trying to load the pics, but nothing shows up. When I open up the OneDrive website directly, I can click on "Photos" and see ALL photos in my cloud account, and there is also a row at the top under the title "For You" which shows several clickable buttons titled "September <XXX>", "A new trip", "Revisiting <month XXX>", "Last week", etc. Clicking on each of those separately yields the same result as when I clicked on "View all memories" from the original email, which is that nothing is displayed but it appears to be trying.

Below the "For You" row is "All Photos" sections which has everything, but not organized like the "For You" row. It simply is the entire set of my pictures from which the "For You" buttons do their selection from.

I exchanged emails with the MS OneDrive support over several days, who made numerous suggestions, but none worked. We did determine, though, that the photos do appear seamlessly if I switch to Edge as the default browser, but I want Firefox as my default.

Because the photos did appear under a different browser, they suggested I contact Firefox, which I'm doing. And this is after I've tried all the suggestions contained in a google search I entered as: "firefox setting to allow microsoft onedrive photos of the day".

Understandably, I'm very frustrated and appreciate any suggestions anyone can provide. Thank you.

Hello,

This started happening recently, in the last 30 days. Gray screen is shown when I clink on any photo in "Your memories from this day" email from photos@onedrive.com. If I go to OneDrive, then select today's date the issue is the same.

I've tried the same actions in Chrome and the photos are shown without issues.

Can someone help with this?

Regards, Petar