Firefox Support Forum

I have a Brother MFC-J53330DW printer, and cannot get the duplex printing feature to work on my computer since installing and selecting Firefox to be my default browser. It is a similar problem others have had in the past, and no solutions have come up that worked. I can print double-side/duplex in other browsers, and this feature used to work with firefox in the past. I updated the Brother drivers. Is there anyone who knows how to fix this issue? It seems like others have commented on it happening with other Brother printers with Firefox.

If you reference this question (Duplex printing not available on default Firefox profile) and others on the support site, the option does not show up in the print menu, or if using the system dialogue. Please help!

All non-Firefox web pages (40+) are in DARK mode. (Black background, etc.). While I used to prefer this, I have found that some websites have information that doesn't show up. So, I need to revert to standard Light Mode for websites. So, I have confirmed on my PC: - Windows 10 settings are set to Light Mode. - Firefox Appearance Settings are set to Light. - Firefox Themes have Light Mode selected and enabled.

The Result: - All my Firefox webpages and Settings, etc., follow the Firefox settings. If I change the Theme, for example, they all follow. - Non-Firefox webpages (40+) do NOT change. With all the above: No impact. They remain Dark, with black backgrounds. Rebooting doesn't change anything.

Somehow, I previously changed a prior computer having the same issue. I don't remember what I discovered (hidden) that did the trick. I remember it wasn't the Theme option. (PLEASE fix this, so that THEMES over-ride).

I have my Firefox accounts Synced (on several computers and phone). Is this a root of my problem?

Please assist.

Thank you.

Craig

I'm enrolled in multiple classes at teachable.com and they both use my email, however, the classes are VERY different and I need two separate passwords. Firefox said NO. Is there a way to have two passwords using the same email address? I did try to log in when I signed up for the second course and it did not recognize my email address. The sign in process for the first site is slightly different and goes through the instructor's site, and then through teachable.com. My password for the first class is stored on Firefox under teachable...and I've emailed myself the password to the second class until I can resolve this. I thought there would be a comment field or something to differentiate the two courses. Please help. Many thanks!

Every time I open a video on a website and try and enter fullscreen mode, it never lets me exit fullscreen mode. Then I have to close the entire window. Also, sometimes I have to refresh the page once or twice to even get in to fullscreen mode. Google is only showing me stuff about Firefox fullscreen mode, NOT fullscreen mode for videos, which is the actual problem.

Hi, I would like to join the chorus and say that the unified extensions button really needs to be fixed somehow. I can't stand it -- it slows down my workflow and seems like "change for change's sake".

But if you guys are serious that it can't be removed for some reason, then at least PLEASE make the unified extensions thing something that can be expanded horizontally along the toolbar (instead of just being a dropdown list) with preferred / most used extension icons visible in it, so that instead of

>clicking the unified extensions thing >scrolling down to find my extension >right clicking on the extension >choosing the option I want

It will just be

>click on the extension icon in the special unified extension section of the toolbar >the options for the extension pop up and I can choose one JUST LIKE THE OLD WAY THAT WAS EFFICIENT

I wouldn't even be opposed to an entire Extensions Toolbar with super security or whatever built into it. As long as the icons are still conveniently located and accessible!

I have a bunch of extensions that I don't need to interact with regularly, like my adblocker, https everywhere, or the thing to make webpages appear in dark mode. But every time I click the unified extensions thing they're right there at the top of the list. My screenshot extension however (for example), which I use constantly, is somewhere hidden near the bottom of the list, so I'm constantly scrolling down awkwardly looking for it. It used to be one button click to take a screenshot, now it's like five or six clicks and takes around 20+ seconds every time. IT'S VERY BAD USABILITY DESIGN. It might "feel" cleaner or more organized to put everything in a list, but it's not as functional for the end user (in my opinion).

Please reconsider your design of this thing and investigate the possibility of keeping certain extensions visible on the toolbar somehow to remain easily accessible to the user. Hopefully I've been able to explain my concerns to you. Anyway, I still love Firefox on the desktop, but if you guys can fix this that would be great.

2013 Macbook pro running Big Sur 11.7.4. The escape key no longer works when using full screen mode to return to the Firefox browser. I must quite and restart Firefox anytime I am in full screen mode. My escape key works on full screen mode on other browsers.

I don't know what happened. Firefox totally changed its look on me. It seemed it wiped out everything, as if I was a new user. I did a refresh not thinking what it was so I uninstalled it and reinstalled it. But this is NOT the FF I've always used. It looks like Chrome!

Luckily, I had written down my settings, preferences, add ons and even changes I made to about:config settings. But for some reason, FF is not accessing web sites. It just keeps spinning and nothing is happening (but this message board page is working for some reason).

What the heck happened?

Hi My settings are as Mozilla suggests and I use to let Firefox save some logins. But I cannot save my login on this site: portal.mobilepay.dk No (error) message, no nothing, when logging in I just doesn't get the option to save the login. Both Chrome & MS Edge have no problems here, but when possible I always prefer to use my standard browser Firefox. :)

Any suggestions?

All the best, Henrik DK

Ever since the last two updates to Firefox, I can't use the browser without a lot of trouble. It won't launch for 15 minutes; links take several minutes to load; it's just not reliable anymore. The Firefox on my laptop works just fine since I refused to update it. I've tried starting in safe mode; disabling all add-ons; clearing the cache and history; uninstalling and reinstalling. Nothing works. I'm using Firefox 112.0.1 64 bit. Windows 10. How can I get Firefox to work again on my desktop?

I've been having trouble staying signed in on websites from Google (youtube, classroom & etc.) while using Firefox. I've tried everything from clearing cookies and allowing all cookies to reinstalling Firefox and removing all extensions, but the issue persists. I've also read other similar articles but they didn't work either. What steps can I take to fix this problem?

I am using Firefox on a desktop and recently upgraded to 112. I have been trying for the last 6 months to SHORTEN the address bar (NO, I do NOT use Search on Firefox) and cannot find an answer anywhere. I am completely exasperated at all controls Firefox has taken away from users the past few years and this is the final straw before I leave you. PLEASE tell me how to REALLY shorten the god-awful length of the url bar so I can see more addons ON the desktop. Thank you very much.

Rob Davis, a loyal user of Firefox since 2009.

My former Mac Air has been stolen. I have a Firefox account and just downloaded it as the browser on my new Mac Air. Is there a way to access saved Bookmarks from my former computer?

I need to be unsubscribed from all email marketing and miscellaneous communications from Mozilla. I keep getting this error message when trying to unsubscribe, and it has been happening for multiple days now.