Firefox Community Forum

I downloaded Firefox not too long ago to combat the fact the Microsoft Edge wasn't working correctly, but ever since I downloaded Firefox it's been making my computer run really slow on the browser. Things are often slow like scrolling up on and down pages websites like Pinterest, and the text when typing on Google docs takes a moment to show up after I've typed it and not instantly, for example.

I checked my computer's task manager because I recently cleaned the laptop, thinking that something else was causing it to be slow, but it isn't. I don't have many processes open on the computer mainly mandatory things and my browser, since I use my laptop mainly for school work, music, or writing. Firefox opens multiple processes, the highest being 21 at one time, and takes up most of the memory on the laptop. Is this normal? Because it takes 1,094.0 MB and keeps my laptop's memory at 90-91%. If it isn't normal, how can I reduce this as well as the lag on my laptop when Firefox is open?

I attached a photo as well.

I have just updated to 141.0 (64-bit) on Lenovo E571 laptop, running windows10 and got the following warning from windows security: Protected folder access blocked. As someone who uses windows, but no idea how it works really, why should this happen with Firefox update, and is it serious?

This has been happening for a long time now.

While using Google Sheets, the slightest movement of the mouse wheel, either up or down, takes you to last line of the sheet and then you can no longer move using the wheel.

It only happens with Firefox; it works normally in other browsers.

This is super annoying if you have to work with it all day.

Please fix.

Thanks.

I am trying to add a secondary email address in the security section. I removed the previous one listed tried to add different one and the add button is now grayed out. What is the problem?

I have Mozilla Firefox as my browser on my i phone. I noticed an exclamation symbol saying" enter your PW to connect". I go to firefox.com/pair on my desktop. I navigate to the QR code and take a picture. I confirm the desktop with the i phone. Then it asks for 2 step verification code from an authenticator. I don't get one. So I download an Authenticator app. And nothing shows up there either. The problem is getting a code from an authenticator to complete the process. What should I do?

Myself and a colleague who both use Firefox on Mac are experiencing the exact same issues.

1. Table header cells don't show their text, unless we specify a font for the table

I tried to put an example of the HTML here but it was rendered as a table by this page. I'll add some images of the code instead to show it.

In Firefox the Header cells are not visible, but in Chrome the text appears correctly.

If we add CSS like...

<style> table { font-family: Arial, Helvetica, sans-serif; } </style>

...in the header then the missing text in the THs appears.

2. Other font issues

The Wave accessibility extension has text that doesn't appear and throw errors like this in the console...

downloadable font: rejected by sanitizer (font-family: "Open Sans" style:normal weight:400 stretch:100 src index:3) source: moz-extension://b86260c9-33f6-4529-b12f-a101d8607bd4/styles/open-sans-v17-latin-regular.woff

These only occur on Firefox on our Macs. Fine on PC and other browsers on the Macs.

We tried a whole series of tweaks to settings to try fix this.

I have tried resetting Firefox and doing a fresh install but nothing fixes either issue. Are these known issues with recent Firefox releases on Mac?

In order to have the "Search Labs" tab to show I am unable to check the box for: "Install and run studies" even though the box for " Send technical and interaction data to Mozilla" is checked. Help please. Thank you Barrington Whitfield. (Barry)

I have set up an account in Mozilla Firefox browser and used to save data like user id and password in it.

My accounts get disconnected every time I restart my computer the next day. I have to again login, enter OTP on email and again have to sync the data

Previously, before 15 days, I was not facing such problem

Kindly advise the possible sollution

I've noticed on several of my pc's running win10 & win11 the AP news shortcut has been added to the new tab page when I have not gone to the AP News site on either PC. If I have "sponsored shortcuts" off and I don't use AP news ever, how did it end up on my shortcuts?

Win11 Firefox 138.04 It appears some of the shortcuts on the Newtab page are preloading somehow.

Where are these coming from? Sidebar is off. I have all preloading off, all suggestions of every sort off, any predictive anything off.

I am not experiencing this on my win10 machine.

How do I stop this?

FIrefox won't install the bookmarks folder I exported from Chrome. Perhaps the reason is they are a lot (1000+ bookmarks), but I still hope it could work, because I want to switch to Firefox, but won't be able to do this if I can't transfer all my bookmarks.

There are basically two methods. One is the automatic method that is provided during the installation of Firefox. It transferred all the other stuff from Chrome but not my bookmarks. The other is the manual installation in which you download or export the bookmarks from Chrome in a HTML file and then import them in the Firefox bookmark manager. Nothing happens.

Is there any other or better way I can import my Chrome bookmarks? Thanks!!!

For a week my pinned tabs are lost every time I open Firefox. I have checked my settings, they were the same as always. I have de-selected them, closed and re-opened firefox, selected them again, closed and re-opened again, pinned my tabs again. Then closed and re-opened firefox and still they are not there. I have done this multiple time with the same results. This seems to have started after the last update.

Firefox version : 141.0 (64-bit) in openSuse Tumbleweed.

This is a fresh install of everything because it's a new machine.

I used Firefox sync because we can't do the old thing of importing a pre-existing profile - it doesn't do what it says it should...

There are two behaviours in my old setup which no longer work, but which are related.

1. If I open a link in Thunderbird it should, if an instance of Firefox is already running, open in a new tab of the existing Firefox window. It doesn't. It opens a new window.

2. If I click on an external link to a site (ie one that points to another site) it should open in another tab. It doesn't.

I have tried the solutions suggested on this site and they don't work.

Firefox is hindering the website of procore. What worked last month is not working this month and I am finding myself monthly trying to find a workaround to get sites to work properly.

Hi all, I'm using Firefox 140.0.4 (64-bit) on Debian Trixie and I'm getting a weird behavior with the auto-complete functionality of the address bar.

If I type the first character the address gets auto filled (see 20250711_First-character-auto-fill-working.png attachment), then if I type the second character the auto filled result disappears (see 20250711_Second-character-auto-fill-NOT-working.png).

I've tried any search option combination, but results doesn't change. At the moment I'm using for the address bar just "Browsing history" (see 20250711_Address-bar-settings.png).

The correct behavior would be, as in the past, that new characters confirming the address would leave things as they are. Do you have any suggestion on how to restore the original behavior?

Many thanks,

Raoul

Hi,

I am using firefox for a long time ans since few days no website is opening. It is not about the connection because other browsers and other devices are working . It is just turning and turning but never opens or refresh.

Any idea what could be?

Thx in advance