Firefox supportforum

Ever since I upgraded to Firefox 63, several trusted websites have stopped loading; instead I get sent to an error page with:

Your connection is not secure

The website tried to negotiate an inadequate level of security.

<www.thestar.com> uses security technology that is outdated and vulnerable to attack. An attacker could easily reveal information which you thought to be safe. The website administrator will need to fix the server first before you can visit the site.

Error code: NS_ERROR_NET_INADEQUATE_SECURITY

This also occurs with https://download-installer.cdn.mozilla.net/pub/firefox/releases/63.0.1/win32/en-US/Firefox%20Installer.exe

Is the problem at my end or theirs? If the former, what do I need to do to return to the behaviour for FF 62?

I already did the following steps:

Type ‘about:config’ in the URL bar, and hit enter (you may have to click though a, ‘I’ll be careful, I promise!’ warning)

In the search bar type ‘network.http.sendRefererHeader’

Double-click on the ‘network.http.sendRefererHeader’ preference when it comes up

Enter an integer value of 0, 1, or 2 or in the dialog box, then hit OK and close the ‘about:config’ tab

but this error keeps coming up, what do I do?

For several days now when I restart or shutdown my computer with firefox on, it automatically opens and goes to my previous pages on startup, how can I stop it from automatically opening, but keep my previous session when I choose open firefox? I'm using windows 10, and 62.0 Firefox, Also firefox does not show up on any lists for automatic startup

Hi there, since some days i encounter problems with downloading pdf-files. I tried this link http://personendatenbank.germania-sacra.de/books and tried to download a file by clicking "PDF" at any of the links there. I wouldn´t work. I see the download in the history (strg-j) but there is no progress. I encountered the same problem at another site.

Is there a problem with downloadlinks beginning with http:// ???

In Chrome for example the link works without any problems

This may sound like word games, but I'm not trying to be funny, merely specific.

So I'm on a network with limited bandwidth. Therefore it's critical for me to understand what settings I can configure (if any) that will prevent the DOWNLOAD of video and/or large images from web sites.

For example, your basic site nowadays probably uses HTML5 and may use that vs. the old-style Flash plug-ins to embed video. And yep classic HTML links with references to image files for the images.

Back in the day you could configure a browser to ignore these references and then the browser would not even attempt to fetch the referenced image or video files. I've recently started using Firefox again, and I'm trying to learn how Firefox handles this in the HTML5 era (or rather what dumb users like me are supposed to do nowadays).

I'm noticing most of the help literature is regarding disabling settings of the auto-PLAY feature. However, due to my ignorance of modern Firefox, perhaps I'm reading it wrong, but most of it seems to involve disabling plug-ins that activate after the file is downloaded, not preventing the actual download. Similar to if I'm using Microsoft Word to view a DOCX file from a web site, uninstalling Word doesn't prevent the DOCX file from downloading. What I don't want to do is cheerfully disable the video playing while my browser still happily downloads the video in the background... because my main goal is not to avoid the annoyance of autoplay, but my goal is to conserve bandwidth on my connection.

FYI I'm using the latest version of Firefox Quantum on Manjaro Linux.

Thanks for advice anyone can provide in helping bring me into the "now" of modern Firefox, or who can point me to any further help articles or instructions to help educate me about this. If I'm over-reading and disabling auto-PLAY also inherently disables the downloading of the associated media, super, but that distinction is not obvious in any of the documentation I've seen so far.

Thanks!!

On the bar I have two Gmail acct.s and prefer my newer one. When I click on it I get the older one. Then I must go to the icon picture to change to my preferred acct. This change happened after an update this year. What needs to be done to only click successfully once?

Firefox hangs when I open a new tab or new webpage. It's really annoying!

Everytime I do the automatic updates this shit happens. I used to go to one of the articles where it gave me instructions on how to reset my preferences, but that thread has since been modified, it now says to delete my pref.js, but that doesn't fix the issue anymore.

So i'm resorting to actually making a god damn account and asking why this shit keeps happening. I uninstalled Firefox and re-installed aswell, but it saved some of my data which I kinda need (bookmarks). That doesn't help.

I know that resetting my preferences back to default every update used to fix it, but I forget how now. Thanks...

Can someone just tell me how to fix it so I can update without having to do all this shit again.

I have only one extension and that is adblockerplus. Not likely the cause as it does this aswell without.

I've tried most of the Netflix (website's) suggestions to troubleshoot why videos won't play with Firefox; none could fixed the issue. The only suggestion I did not try is to disable Private browsing mode simply because I don't know how to do it and Firefox Support does not specifically address this task. I've also tried the suggestions provided by various forum responders to this issue ... again, no fix! Can someone please provide specific instructions on how to disable Private browsing?

I'm tired of switching from FF to IE every time I want to watch a movie.

So thanks to your update today I can no longer watch videos via prime or netflix due to a Widevine.Cdm error.

That's fantastic, especially as Microsoft are moving to Chromium, you're really selling your service.

See I'm being totally nice. And not calling you names.

Firefox has been opening multiple processes and is slowing down my computer.

I have read that this is because of an update. So, I want to completely remove all of my updates back to the one which caused the problem, and prevent Firefox from harassing me to install the new ones.

How do I do this?

Thanks for any help.

About a week ago, Firefox suddenly stopped prompting for passwords and no long autofills passwords. I tried rolling back to v. 63, but it still won't work. If I go into options and check "ask to save logins and passwords," it works as long as Firefox is open. But as soon as I close Firefox, the option is no longer checked.

All my passwords as still there in Firefox, but they will no longer autofill. This literally started about a week ago and I have made NO changes to my computer. I do use Roboform, but I have used it alongside Firefox for many years with no issues. I did log out of Roboform, but Firefox passwords still did not work.

I build and repair computers for others, so do have a clue here. Any suggestions?

If I'm in Firefox and want to print an editable (to highlight) pdf page, I go to "Print" then choose either "Microsoft Print to PDF" or "Wondershare PDF element". What is displayed is never right. It may show the 1st page . . but not the rest; or nothing at all. I was going to try "Nitro Pro 12" but it appears that there is no way to install its "plug-in" now with Firefox.

    The end I want to get to is to have the ability, from within Firefox, to convert or "print" a pdf, that is editable, and will allow highlighting, from the webpage HTML.  It would be nice if it could be done, all at once right from the browser, without having to go through multiple steps - like taking a "screenshot" then uploading that image to some other site - which has also had unsatisfactory results (each "step" having the potential for some other unforeseen screw up or incompatibility).  I've spent a lot of time searching and can't find anything.
    Any help would be appreciated.

I connect to internal systems frequently and that have private certs. I just want to auto add an exception and avoid multiple clicks to get to the actual page. I do not see a way to do this but am hoping for a less documented feature.

Thanks!

Attempting to play a Trailer, Firefox presens the following message:

The address wasn’t understood

Firefox doesn’t know how to open this address, because one of the following protocols (aiv) isn’t associated with any program or is not allowed in this context.

   You might need to install other software to open this address.

Firefox keeps saying it cannot continue to create a firefox account because cookies are disabled. I check my cookies setting and cookies setting is standard. Firefox will not create an account because it keeps saying cookies are disable when they are not disabled. I have had to do this using Chrome.

Upgrade from 63 to 64, no extensions/addons or security apps present. Flash enabled to make the login page available. After inputing username/password and selecting domain, hitting enter or pressing Login does nothing. Our only solution at the moment is to downgrade to 63 and disable automatic updating.

Firefox 64 (64bit) Adobe Flash Player 32 NPAPI 32.0.0.101 Adobe Shockwave Player 12.3.4.204

How can I roll back to the previous version of Firefox?

It just updated without my knowledge to version 76.0 and it broke Google Maps. I cannot "grab" the maps and moved them in any direction, an extremely very important feature. It's not Google, because I tried the identical maps using Opera, Chrome and Brave and it's working fine on all three of those browsers. Thanks for your help.