Firefox Support Forum

Hi!

When Firefox 96.0 rolled out on my machine, I was surprised to see my old Firefox Quantum theme default to dark. I did not enjoy this new behavior, so I tried to downgrade to 95.0.2. After installing it, Firefox told me it couldn't load the user profile, as it was used on a newer version of Firefox.

I have no idea where exactly I read this, but some website contained an instruction to erase compatibility.ini and that would allow me to use the profile on older versions. Tried that and it actually worked. I did notice that, when Firefox tried to update, it would say it failed. I was hoping that, once I find a solution to the forced dark mode and I update Firefox, the problem would go away.

Fast forward a few weeks, I found AutoConfig and browser.theme.toolbar-theme option in about:config. So I updated Firefox manually and applied AutoConfig and my original problem was gone.

Fast forward more weeks, there is another update for Firefox. And Firefox was still unable to automatically update. So I tried reconstructing compatibility.ini, which I did fully. But Firefox still won't update.

At this point, it's been like 3 months with a crippled user profile and I must say I'm tired of updating Firefox manually.

Is there any way I can fix this profile? If not, what exactly should I copy over so all my preferences, cookies, addons and themes get carried over to a new one?

After the last update, the PIP overlay button is different and larger because it contains the message "Watch in Picture in Picture" and when hovering the mouse on it makes it bigger because a second more detailed message appears below the first one.

I would like to make the PIP overlay button as small as it was before with no text at all. What do I have to do in order to obtain this effect?

I am unable to sign in to my Florida Retirement System (FRS) FRSOnline account at frs.fl.gov on my desktop or my laptop computer. I can log in on my cellphone Firefox app with no problem. I have checked and my username and password are correct on both my desktop and laptop. I can also log in with no problem using Microsoft Edge. Help! I don't want to have to switch to Edge! Thanks

I am not good with computer knowledge. I got a gift of new laptop with Windows 11. How can I transfer all the bookmarks etc to new laptop? I am not able to see the steps mentioned by searching on Google

Many file types are no longer listed under Settings > Applications>Content Type at about:preferences#general. I used to be able to click on a file in an email like a Word or Excel document, and it would come up on my screen. Now Firefox asks me to Save them. I don't want to automatically save files without first looking at them. How can I get those file types in the Application list again?

I have attached a pic of the file types I have left to chose from. There used to be a lot more. How can I get back all the missing choices I have had there for years?

Hello,

From the version 89... we have a non solutioned problem with Firefox... In Belgium, we use a "electronic Identification card" to access differents officials web site. but with Firefox I (We!!!) have a problem... the identification process loop with a message "Please insert the smart card" ??? After I receive the message: "Secure Connection Failed

An error occurred during a connection to certif.iamfas.belgium.be. A PKCS #11 module returned CKR_GENERAL_ERROR, indicating that an unrecoverable error has occurred.

Error code: SEC_ERROR_PKCS11_GENERAL_ERROR"

I restart, I reinstall FF, I reinstall the eID software... no way!!! But it's work fine with Chrome, Edge,... Why not with Firefox 98.0.2 ?!? It's very important to find a solution for the belgian users, without this support, the users go to Chrome, Edge,... Have a nice day, Philippe

~~~SOLVED~~~ Hello guys, this is about some..adults sites, i'm just getting loading error on the screen. Sorry if that's inappropriate. Also recently, youtube videos can't play at 1080p, only 720p, even tho i know the video it's 1080p.

Hey gang! For some reason firefox will not do anything at all unless I run it in windows 8 compatibility mode. I'm on windows 10. If I open the app it won't search anything, show any webpages, etc - but the search bar still works, it'll show me suggested sites and what have you. I can also access the settings page. Aside from that, zilch. I've done a full fresh install and it didn't fix anything. Has anybody had this before? Thanks!

Hi, for the long time when I have opened an PDF with external application, it was downloaded into system %TEMP%, then deleted after ext. app was closed. Very fine and expected.

Since ca. few weeks such PDFs are now downloaded to Desktop - and not removed afterwards! It's quite annoying to clear them again and again. I've checked, my %TEMP% and %TMP% are set correctly and writeable.

I was using a VPN set to Canada a little ways back, and now Firefox seems to believe I'm forever in Canada. Any time I go to use the default Amazon search included with the browser now, it defaults to Amazon.ca rather than Amazon.com. I've tried going to Amazon.com directly and manually adding the search, but that just gives me an error message. I don't have anything set to Canada at all anymore. How do I get my Amazon search to go back to normal? Is there something on the back-end I can edit to fix it?

I want to be able to print my .docx files without saving them first. I went to General and Applications. .docx is not in the list, so I'm unable to select how it handles these files. How do I add .docx to the list of content types?

When I am watching a TV stream on my PC; when I hover on (some) pictures or videos, a supremely annoying pop-up url appears at the bottom of my screen. I have some learning problems and can not figure out the 'userChrome.css' method. I can not work with long streams of multiple overlapping instruction. I am not tech savvy. I do not understand 'layers' and stuff like that. I can do the 'about:config' thing, if anyone knows whether or not if I can fix it from there, I would be eternally grateful. Thanks.