Firefox Support Forum

I've got a new computer I am setting up from scratch, and though I have set FF to sync settings, I'm still having to customize a lot. My bookmarks toolbar is crowded again with icons and I'd like those to go away. I don't mind other icons staying around on the tabs--that does help me navigate faster. I had this set up before, but lost the setting when I refreshed Firefox.

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

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?

ASUS recently updated the firmware on my home router. Since then Firefox does not work when accessing my ASUS router's management console. By this I mean that I get a blank white screen after connecting to the router. How do I go about debugging this? I am guessing that the issue is caused by one of the add-ons that I have installed in Firefox, but I guess it could also be a setting I have made. In any event, I am looking for a quick methodology to figure out what is causing this incompatibility.

I cannot set my preferences because the preferences menu will not display when I select Command, from the pulldown menu under Firefox in the top left banner. I am stuck with whatever this is. I cannot set my search engine. I cannot set my popup preference. I cannot set any preference. I use Mac BigSur 11.5.2. I can't share data. I am having trouble streaming my favorite radio station because I cannot reset my popup preference for the station. Nor can I use my search engine: DuckDuckGo without typing it into the Start search box because I cannot set my search engine preference. I cannot set other preferences because it seems I don't have any options since I can't get the preference menu.

My tabs have been lost and I have a previous historic set before they went. Problem is how to get them to open FF?

When I use the profile folder (with FF closed) to remove the last and useless previous session and back up files, and replace them with the historic session files, when I reopen FF it still reverts to the session with no tabs. What can I do? Thank you.

Where is the ability to save credit card information? As per this moz article its definitely not under privacy&security -> forms autofill, in fact there is just logins & passwords nothing about credit card.

I also went into about:config to confirm these attributes are set to true. extensions.formautofill.creditCards.enabled extensions.formautofill.creditCards.available

version 90.0.2.

I cannot add a Zoom meeting to an Outlook meeting using my Outlook Web app. The Zoom add-in is installed and the button appears in the Web app. When I click it, I get the message "Zoom is working on your Add a Zoom Meeting request." But it just hangs there.

The Zoom add-in works using my Outlook Desktop client on the Mac and using Outlook Web in Chrome. Firefox seems to be the issue. Any idea what I can try to fix this?

Whenever I go to Amazon.com the site displays in a micro format (about 20% of the screen in the center), too small to read at all. Yet if I use Internet Explorer I do not have these issues. I have cleared my cache etc (no luck) How do I fix it.

When I open a website using special symbols, the symbols are replaced by a sign with 6 hex symbols in it.

It even happens when the symbol is used in the page title (see image). Site used: https://emojipedia.org/yawning-face/).

Interestingly, other emojis from the same site are displayed correctly (means the '01F971'-type symbol is replaced by the emoji, in all occurrences on the site and title)

I have seen multiple threads about this, even on this site. However, I could not solve it with the suggested solutions. What I have tried so far:

1. Disable addons 2. Make sure fonts are downloaded through settings 3. about:config -> gfx.downloadable_fonts.enabled -> make sure its true (4. no-script is not installed)

Any ideas?

FF is offering me two versions of my e-mail when I login to a website where I have specifically told it to 'never' remember a password. The little black selection dropdown shows both myUserName@myMailserver.com myUserName@myMailserver.co When I click to login page of 'website.com'. It does not offer this for all websites that use e-mail address as login.

I have checked and the website in question shows up in 'never save' exceptions to my 'ask to save usernames and passwords'.

So I have no saved passwords to remove for that site--when I look up 'website.com', I get nothing.

2 questions: why does FF continue to offer a login name for that site?

FF 93.04 beta (will be updated in a few minutes to next version) MacOS 11.6 Big Sur and where can I find and zap 'myUserName@myMailserver.co' without losing all of my other logins & passwords that I do allow FF to store for me?

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?

In the old firefox, I had the opportunity to share websites and f. e. send them from my laptop to my stationary computer. I think there were three dots ... next to the url. But that is gone. I used that a lot for websites that I needed to print out (my laptop isn't connected to the printer's vpn).

What now? I don't think I can use pocket for that, since that saves all the websites, I just need to send them once.

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,

So, I dowloaded the multi-account container. And I wanted to unassign a website from a container. However, it seems that I can only re-assign to another container.

Is there any way around this? I added by mistake.

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

I just restarted my macbook, and suddenly firefox's display looks like this. I've tried looking in setting for the option to turn this off but I couldn't find anything which suggested it. If anyone knows could you please help?

This is how tabs like google search and google slides look. And the blanking out in the firefox add ons manager.

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!

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.