Firefox Support Forum

Hello. I have been using Firefox off-and-on since the version 2.0, and there has been one bug that is plaguing me since 10+ years, and that is this error message that occurs when I close down Firefox and try to immediately reopen it (sometimes I wait 2-3 seconds just to avoid this error to no avail).

I am using version 65.0.2 (x64) now on latest Windows 10 version (on an MSI laptop with a spec of Intel i7 8750H cpu, Kingston SSD, 16 gb dual channel RAM and Nvidia RTX 2070 graphics card) and have been encountering this bug daily, and it really became so annoying that I'm considering reverting back to Chrome (which NEVER had this bug). This problem usually occurs when my previous Firefox session had more than 4 or so tabs, etc. but it also occurs when I just try to close and reopen the Firefox to test if the bug persists and 1 out of 5 times I get this bug and have to wait around 10 seconds for Firefox to realize there is a leftover session and offer me to close it before being able to open a new tab/window.

I have tried removing the .lock file from the profile folder (which DOES NOT remove itself when I end my session and gets recreated each time I restart a session), checking off the read-only mark from the profile folder, creating another profile and disabling hardware accelerating; but none of these made the slightest impact on the frequency I experience this problem. This thread from official Mozilla support also didn't help (https://support.mozilla.org/en-US/kb/firefox-already-running-not-responding ).

Should I just accept that this is the way Firefox works and that I need to wait 5-6 sec or so before attempting to reopen Firefox (as suggested here https://www.howtogeek.com/131004/how-to-fix-the-firefox-is-already-running-error/ (which dates back to 2012 and saddens me deeply that 7 more years of development changed nothing on this front)), or shut the Firefox down each time by killing it from the Task Manager; or could there maybe a fix to this? I had recently ditched Chrome since it froze my computer (a very rare bug related to the newer Windows 10 versions which occured only once to me, but felt serious enough that I uninstalled it), but if I can't find a reliable fix to this problem, I will probably just go back to Chrome where the bugs won't affect my daily usage.

Thank you for your help.

It takes 2, 3, sometimes 4 times to click in an input text box to type. Restarted to safe mode didn't work. I tried in normal mode with all extensions and add-ons disabled or off. Changed theme to normal. Disabled hardware acceleration. Uninstalled/reinstalled FF. None were successful. It works in Chrome and IE. I look at my keyboard to type cos I'm retarded. So when I click once and the page animates like it wants to select but it doesn't, I usually have typed an invisible paragraph before I realize I have been duped. It is not a huge thing, just annoying.

I have searched for an answer and all the results come back with "Smooth Scroll" inside Firefox. My problem is with my website. I have windows 10 and when I go to my website using FF, smooth-scroll.js doesn't work where it actually jumps to the anchor tag on the page rather than scroll smoothly. I have tested on several other computers I have in my workshop using vista, Windows 7, Linux and Apple and all scroll smoothly. I have asked several counterparts to have a look as well and they have said it scrolls perfect. My site scrolls smoothly using IE, Edge, Opera, Chrome and Safari and all work perfect. I tried debugging, I have disable and re-enabled hardware acceleration I have tried uninstalling FF and reinstalling with no luck. And I have Windows 10 fully updated.

Sorry for the long explanation but my question is, "Has anyone come across this issue using FF on Windows 10"? I know it's not an FF issue as it works on all other types of computers but perhaps there is a setting I have missed. I love FF and have used it since 2004 but this is driving me mad.

Please check my website here. https://www.denlyncomputers.com.au

All responses will be appreciated.

Cheers.

When I delete Firefox cookies, I would like to delete only selected cookies, which would be about 98% of them. There are a few web sites that use stored cookies to let me log in faster, if they don't find their cookies I have to get an email, text or phone call to log in. In past I used CCleaner which had a list of cookies to keep. Past several months CCleaner isn't even listing that it see any cookies, others are seeing the same thing- it just not deleting cookies for IE, Chrome or Firefox.

Question, is there a way with standard Firefox to delete cookies on close, but have a list to save and not delete? I see where to create list to allow, allow for session or block. But I am thinking that list isn't for keeping if I were to click on "clear data" or check the option to "Delete cookies and site data when Firefox is closed".

Bleachbit will clear cookies, but it doesn't give you options to save certain cookies. There may be some plugin/addons to FF, but I get nervous about all the options they need like view all data. I understand why, but would rather do it all within FF standard code.

I am using Windows 7 Pro 64 bit, Firefox 65.0.2

It appears that the update service for Firefox (and possibly Thunderbird) is broken, as I get a pop-up stating "Firefox can't update to the latest version" every time I launch and every couple of hours.

I have uninstalled Firefox, installed with a new profile (moved original elsewhere), and tried it all over again after removing Firefox, ThunderBird and the Mozilla Update Service through Revo Uninstall. Doesn't appear to work.

Somehow the update service just can't fetch update information and keeps showing that message.

Any advice is appreciated.

Recently I've noticed that on youtube, the comments are entirely missing using FF on Windows 7. Comments are visible when using IE. I tried clearing cookies as recommended on a thread about a problem posting comments but it did not help. I think this must have happened after updating to v65. I have a Mac on FF v65.0.1 and the comments are there.

I must use an older version of FF otherwise the source code in my email app turns to mush. Although I have disabled updates they still keep updating. How do I stop them updating.

This printer works well with all other programs. SEt up for wifi. Stopped working with the last update of Firefox. This includes pdf files, email and web pages. Works fine in microsoft edge (same pages).

First of all I didn't want a new firefox update but FAIL to be able to stop it.

Secondly since the 65.0.2 downloaded on 3-5-2019 I have not been able to signin on this site: lockheedmartinsavings.empower-retirement.com I (seem to be able to) enter user and password but then firefox has the little-circle going around until forever. Last time it worked was 3-6-2019 AM - coincidence?

I been having problems with Firefox ever since I refreshed 65.0.1 losing 6 years of bookmarks, addons and passwords, after 7 hours and I managed to get old files back and had to redo addons and passwords. It became unreliable with copying/paste not working, slowness etc and when I found that it was not updating to latest 65.0.2 I scrapped it and downloaded latest. But cannot get old version of profile back. Instead I have no files showing up in local directory, though root directory is showing *see screenshot. So I have to restart everything from scratch with important passwords and bookmarks etc. It still will not show but closing down firefox it does save and keep customised setup and session etc. Is this normal to vanish on this version?

have mac MojaveOS 10.14.3

I have my Firefox windows pinned to the left of my screen using Windows snapping. Whenever I watch a video and click full screen then exit full screen the Firefox window is slightly widened.

See pictures.

As you can see at the top left of the second picture the Firefox window has expanded a bit. It expands in both direction. Each time I full screen a video it enlarges by a few pixels. When I repeatedly go in and out of full screen the window enlarges. It is not a huge deal. It just annoys me. I have to snap the window back into place after I watch a few videos.

Does anyone else have this problem? If you do have you found any solutions for it?

Thanks.

Windows 10 and BT as the ISP. Using Firefox Quantum I go to "https://home.bt.com/" and open the email page, which is BT Yahoo Mail system. Clicking the contacts icon (displayed off the to extreme right instead of above the blue "Compose" box) will reopen the same main page on a new tab but not the contacts info. BT operator (who are my ISP) suggested:- "about config" accept warning then find "newtab.url" and Reset, Another idea was to check prefs in "Trovi" and reset these. I checked config list but there is no "newtab.url" and I haven't got the faintest idea what or where Trovi is ! I can confirm that the icon is displayed in the usual place correctly and works when the Edge browser is used instead of Firefox, but I don't want to use Edge ! This problem raised its' head awhile ago but not a problem until now. I am a pensioner and apologise if this is an elementary question.

Hello, friends!

Sorry for my English. But I have problem with my FireFox 65.0.2

I use some add-on in my FireFox (Visual Bookmarks, Download Manager....) . Sometimes Add-ons stop working. And I need again click disable and click enable. Add-on is working again. But in a few days add-ons stop work again.

Where can I find decision for this problem? Thank you.

Hi Everyone, I took out a subscription with the British Film Institute (https://player.bfi.org.uk/subscription)

After registering without difficulty, I found I could only play the "Free" films and not those available on subscription.

BFI Support seem to think it is something to do with a conflict of privacy/security settings and I wondered if anyone had come across anything similar -- or had any good ideas for resolving it?

I am running F/F Quantum 65.0.2 as my main browser, with DuckDuckGo Privacy Essentials, AdBlock and AdBlock Plus.

I have "whitelisted" the BFI site in DuckDuckGo but it has made no difference.

Thanks,

Ian

I am using Hide Me to surf the internet. On my home screen before i activate Fire Fox Browser The Hide Me Page shows it is active. When I click my browser I have to go to the Hide Me page and re-select and sign into hide me to get to work with Fire Fox, What am I doing wrong?

A strange problem with FF 65 under Win10/Pro 64 (1803). I'm pretty sure this is a local problem, since it doesn't appear on my other Win10 machines.

FF 65 is very slow to close, but it's not entirely obvious. I first noticed the problem when I closed FF, then about 15 seconds later I re-launched FF only to see a notification box saying that FF is already running. For testing, I tried re-launching with add-ons disabled (I have 4 add-ons, including uBlock origin), then closed FF while observing the Windows Task Manager. In the "Apps" section of the task manager FF disappears, but under "Background processes" I see 3 or 4 instances of FF, one of which consumes up to 33% CPU and up to 800MB of memory while running. These background tasks vanish after about 30 seconds.

What is FF doing at close? Is it possible to trace what happens at close?

If you see the attached image, there are no icons visible and the drop down button which is used to switch between accounts isn't working. When i search something in gmail, the page itself refreshes and nothing happens.

I've cleared everything on firefox. No add-ons.

Uninstalled and deleted all folders related to firefox. Installed a fresh copy of firefox.

Yet i'm facing the same problem with gmail.

Is there any shortcut in keyboard that disables something and this occurs. I doubt it.

Previously the same problem happened. I restored the windows and it worked.

Now i don't have any restore points and am not ready to do it again.

Gmail works fine in chrome and other browsers. But not in firefox.