Firefox Support Forum

I started up my computer today; I tried to open up a youtube video in picture-in-picture add-on, but it wasn't there. I restarted my computer, completely closed firefox, looked into settings for the picture-in-picture settings that are supposed to be under 'Browsing' in General but I can't find the settings for it there either. I have tried using other video sites, but nothing works.

Please see the attached screen shot. The icons at the top which allow you to toggle between watchlists are not available, and if you look at the list of stocks, some say "Equalizer" instead of showing the icon. Any settings I need to check?

Hello, Few days ago I noticed that Firefox started complaining about self-signed certificate issues, although I added my CA certificate to authorities months ago. It worked without any problem, but now I'm unable to open any of my internal sites anymore.

I tried to open a random site in Chrome, but the same issue. So you immediately will say the is in the certificate, but wait. I have few VMs running on Virtualbox, so I decided to test in there. Guess what, no issues at all. I tried in Fedora 25 (the Firefox version is below 100), then tried Windows 100. Both worked. Then I decided to update FF to the latest version, guess what - it broke again =]]

So something has changed, but I really don't have a clue what causes the issue. I attach the screenshot of detailed CA view from Firefox.

Instacart webpage suddenly will not display/open on Firefox but can display fine on Chrome. Instacart App on mobile phone works fine, just won't open in Firefox. Any suggestions other than using Chrome? Firefox version 101.0.1 Windows 10. Was working fine until latest update installed this morning.

For some whatever-reasons (TLDR; I need to see the whole domain (including subdomains) clearly, unlike the default of only highlighting the TLD&second-level domains[1]) I want to disable the color-distinction which highlights TLD and second level domains.[2] Is there config to do so? If not where should I propose one?

Thanks.

[1]: for example ko.wikipedia.org and en.wikipedia.org will have wikipedia.org highlighted, and that's what I can't accept because ko.wikipedia.org (Korean) and en.wikipedia.org (English) is completely different site. (Some might say you can distinguish by language, but there are some English sites which shares the same domain on wikimedia.org, so you get the point here.) [2]: From the screenshot you can see only `wikipedia.org` is highlighted. I want to make it highlight all of en.wikipedia.org. (If I need to highlight everything including the site path below the TLD, I can accept that.)

Hello, I regularly open pdf files and other documents with local readers/writers by selecting the option "open with". My big issue is that the files are yes opened with the local reader, but they are also automatically downloaded in the "Download" folder.

Before files were stored in a temporary folder, and I would like to continue like that because my "Download" folder is exploding and it's a mess!

Or, at least, there should be an option to select where to download automatically the files when I select the "open with" option. So I can chose a folder that I now is to be trashed.

Thank you!

Been using Firefox for long time on a Win10 machine. Motherboard failed. Saved the C drive. Question is how to move bookmarks (profile files ?) from the old C drive to the new Win11 computer? I tried moving the profiles over from the old C drive to the new computer but Firefox would not recognize them and shutdown. Restored the Win11 files and Firefox is again happy.

In settings, Start-up, I have the box checked for: "open previous windows and tabs" but it doesn't work. In order to do my work I need the 23 tabs I currently have open to show up again after a reboot of the browser or computer. What gives? How long will it take to get this corrected? Please give me help. Thanks, Mark

I've tried everything and read all the instructions but none work.

When I log in to survey websites (e-rewards or one opinion), they get the neverending clock so I can't choose & take a survey. I get into the website & can do everything except for taking the survey. Works fine in Edge.

Hello, I experience a XUL Runner error message after attempting to update Firefox and in following the guidance to rectify the error deleted the Firefox folder including the bookmarks. Is there anyway of recovering the bookmarks (maybe with a third party program) or are they lost forever? Thank you.

No matter what i do this is not working. googled alot but still. my mind at this point hurts been trying to make it work for months , one time it worked but broke again. i also use edge and it works flawlessly there.

So these are my current settings. 1. Enhanced tracking protection - Strict 2. Do not track- only when firefox is set to lock known trackers 3.Cookies and site Data - (ticked) Delete cookies and site data when firefox is closed .

  Manage Exceptions - i wrote github.com, steamcommunity.com, and many more but does not work

4.login and passwords - everything off 5. History- Use Custom settings for history

   (Unticked) Always use private browsing mode, Remember browsing and download history, remember search and form istory

(ticked) Clear history when fiefox closes -- In settings--everything ticked except -- browsing & download history, cookies, site setting, offline website data.

Please help.

why can't Mozilla updates be downloaded,& installed when I sign off instead of when I first log on? Very irritating to have to wait for updates to be completed.Thank you for taking the time to hear me out

I've been using Firefox almost exclusively for years now, and it's always worked flawlessly - until recently! Now, when I log into my GitHub account, I can no longer edit and commit my changes.

When I click on the "pencil" on a rendered page, I am taken to the "edit page" where I can make my changes (in markdown), preview those changes (rendered in markdown), and then commit those changes. Beginning very recently (within the past few days), the preview tab is no longer functional, and I can no longer commit my changes to the file.

I've verified that GitHub has not changed their interface by logging in from my Chrome browser, and following the exact same procedure used in Firefox everything works as it always has.

I recently upgraded from ver 99 to 100, and now to 101.0.1. I recall clicking a pop-up immediately after the 99-100 upgrade that had something to do with cookies... sorry, I know that's lame, but it's all I can recall now. In any case, I am certain this happened recently.

Please help... I have to use Chrome for a couple of things already (my brokerage account at Vanguard for example), but I despise Google, and want to limit their spying.

Thanks,

I'm using 64-bit Linux Mint 20.3 LTS, and the latest version of Firefox from the repositories (101). Suddenly, for no reason I know, my default profile has started crashing immediately on trying to run Firefox. A small window comes up with the error message

XML Parsing Error: not well-formed Location: chrome://browser/content/browser.xhtml

     <button when-cofnection}"secure-cert-user-overridden"="" <="" pre="">
and then a line of ------^  where the ^ indicates between the t and the i of cofnection
Yes, I emphasise that I HAVE copied the error message carefully, including the mismatched bracket pair and the cofnection rather than (I assume) connection
I've managed to get a working version of Firefox by creating a new profile and using that (as in for posting this request for help), and I do have a recent backup of my bookmarks, but it will be a royal PITA if all my logins and passwords have disappeared. I don't want to go any further than this without some guidance, as all the messages I've found detailing how to fix this seem to make the assumption that I'm running Windows. 
Can anybody help, please?
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