Firefox Support Forum

I use Firefox quite a bit and installed it on my wife’s MacBook air and I’m trying to get her to use it. I recently set up a gmail account for my brother-in-law who does not have Internet and uses my wife’s MacBook air when he visits us. 

A couple of days ago the mystery icon—Firefox logo with a tv screen on the upper right—started appearing on my MacBook pro every time she turned on her computer. There does not seem to be a way to get rid of it. Any suggestions?

Hi everyone,

I have the problem in the Subject line. FF sucks about 500 MB to be run, on top of which it takes 500 MB per tab, and that makes it impossible to run a research on my 8 GB Mac. Yesterday I was looking for a lamp and had no more than 7 tabs open, 3 of which were largely text, 2 were online shops, and 1-2 were websites with pictures. No Facebook or social media, no YouTube. FF froze, made the whole Mac freeze (well, Mac is garbage nowadays but let's leave that out of this topic), and I had to wait MINUTES before I could close it, because the computer was nonreactive.

When I check online, I see people being like "why can't it manage more than 50 tabs?". 50?!?! My computer dies with a maximum of 10 when it's only text websites!

So, I guess there's something wrong with this.

- I don't have many extensions (SimilarWeb, VPN, and Flash Player), I always use incognito so I can't use the plugin that allows me to use several accounts at the same time, so I can't see what's messing with my Mac. - The Activity Monitor (pretty much Task Manager on Windows) shows "FirefoxCP Isolated Web Content" for each tab, could that have anything to do with my problem? - CPU usage is very low, some 0.5 to 10% max during heavy use. - I seem to remember I used to have dozens of tabs open in the past, although I can't be sure. Is this a recent problem?

I really hope there's a way to solve this, because now I always fear that opening FF while on a Zoom meeting might freeze the whole thing.

Thanks to anyone who might want to shed some light on this big problem.

Screenshots: RAM and CPU usage with 2 tabs open. Two, taking more than 1 GB of RAM and about 250 threads in total? While using 0.2% of the CPU? I'm lost

Hi,

I cannot find a way to turn off/disable the "AutoFill" setting... it keeps on revealing my email addresses before I've typed them out.

I'm not a fan of these security breeches. Firefox is giving the wrong info online about disabling this feature because each time I try to disable in preferences/privacy... there is no "dropdown menu" whatsoever.

Any help on this matter will be most appreciated.

I'm having problems opening saved (archived) Facebook pages. The problem is the page opens without formatting or layout, just text and images.

I've had this problem before when I was using Firefox 68. The solution was to roll back a security patch by doing the following as proposed by jscher2000:

You can roll back the patch as follows if you want to see what difference it makes:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button promising to be careful or accepting the risk.

(2) In the search box above the list, type or paste uniq and pause while the list is filtered

(3) Double-click the privacy.file_unique_origin preference to switch the value from true to false

That had worked until recently. I checked "privacy.file_unique_origin" and its still has a value of 'false' but the webpages are not opening properly, even ones I saved over the last few years.

What can I do?

Hello all, I need help fixing the fonts when a google doc is in a different language. Could Someone tell me how to fix this?

Note; I have read another thread about this type of issue,, but I really didn't understand what fixes it

Thanks for any help

When I'm using the Firefox browser a small pop-up box often appears saying "Must provide password." If I type in my actual password and hit Enter, the box just pops up again. If I hit the Cancel button it goes away and doesn't seem to affect my use of the browser. Is there a way to get it to stop popping up?

Somehow Airbnb fails to load after numerous attempts. Clearing cache etc. doesn’t do the job. Shutting down the VPN doesn’t do the job either. The message I get from their website is (in Dutch) that’s something went wrong.

“Unfortunately your request couldn’t be executed due to a server error. Maybe maintenance is taking place currently on Airbnb or something is wrong with your connection. Refresh the page and try again.”

Anybody knows what to do please?

Hey community!

Is there any way to make the cmd + 0-9 keyboard shortcut in Mac OS ignore pinned tabs?

Alternatively, for the shortcut ctrl + 0-9 to activate pinned tabs, and for the shortcut cmd + 0-9 unpinned tabs?

Thanks for the answers!

I have three Firefox profiles: A, B, and C. I tried to give them all different themes. A has a red theme and keeps it consistently. B, my default profile, should have a green theme, and C should have a black theme. However, when I change B's theme to green, the theme on C also changes to green, and when I change the theme on C to black, the theme for B also changes to black. I don't know what I did differently for A! How can I make my profile themes stick for B and C?

When i go to a website that requires a password I get a black box that pops up In the box it says Password Required - Moizilla Firefox Please enter the primary password.

How can i make that go away.

I would like Firefox to access the Mac OS "Dictionary" for immediate definitions, the way it accesses its own dictionary for spelling, or as Mac's Safari, accesses the Mac dictionary. I see nothing listed in Firefox>Services, nor does the OS's Services Preferences show Firefox as an app to connect services to. I can always get the definition with a right-click on the highlighted word, but I'd like the definition to be a readily available as the spelling.

TIA,

Loving the picture-in-picture feature. I googled to see if there was a keyboard shortcut to pop out the video and saw that ctrl+shift+] or cmd+shift+] should do the trick, but on my mac (firefox 95.0.2) the ctrl version seems to do nothing while the cmd version goes to next tab, which is redundant with ctrl+tab. I'm wondering if the cmd+shift+] shortcut is being overriden accidentally, or if there's a different keyboard shortcut for this on mac? cheers

I have consulted https://support.mozilla.org/en-US/kb/how-do-i-restore-my-tabs-last-time. That article says:

-Click on the menu button [three lines at the upper right] to open the menu panel. -Click History. -Click Recently Closed Tabs.

I am using Firefox 95.0.2 for Mac (iOS 10.15.7). There is no "Recently Closed Tabs" option to click after clicking on History per the above instruction. I have saved various files from the time of the crash, in particular "previous.jsonlz4" (a 20.6 MB file, as I had a very large number of tabs open). Is there any way to use this or some other file to restore my old tabs?

/moved thread from Firefox for iOS (for iPhone/iPad) to Firefox (desktop) section as you have macOS.

Hello,

I just upgraded to Firefox 98.0.1. And there doesn't seem to be an option to add Pocket suggestions to the homepage, as there used to be.

You can add Pocket articles that you've saved, but not suggestions from Pocket.

It used to be under settings - home - recommended by Pocket.

Has this been removed from the options?

Thanks, Taylor

I have tried many times and many ways to delete cookies but the little blighters won't delete. I have used the option "manage data" and cleared each one individually, I have tried "remove all' and I have tried clearing all history. I have tried each option many times and have shut down firefox and my mac repeatedly but the cookies won't go. I know it has done something because it logged me out of all my accounts and all the form data and browsing history [which I would rather have kept] is gone....but those rotten cookies are still alive! This must be a bug. I am using Mac Big Sur. Any help would be very much appreciated please! Thanks muchly.

How to change sidebars and backgrounds back to White background (or at least a light gray) with Black text contrasting on top. Too much Dark and gloomy now days. Or allow a theme color schemes that fixed it back like it was before updates.

Please don't force gloom on our browser.

Dear Community, I love Firefox but here is how fonts now look like on my old MacBook Pro (v10.13.6). Why is this? How can I fix this? My Firefox version is up-to-date. As shown on the screenshots below, on Chrome fonts appear to be normal. Thanks so much for your guidance!

/moved thread from Firefox for iOS (for iPhone/iPad) to (desktop) Firefox section.