Ondersteuningsforum voor Firefox

After updating to Windows 11, all my Firefox webpages backgrounds are colored black even after choosing a light theme which only changes bookmarks and toolbar to white. I want white background like my old Firefox ?

Hi - Javzscript Enable, though "True", still brings up the error "Enable Javascript". I spent hours on this, but nothing useful was found. Has any one had this problem, and if so, were they able to fix it?

Best regards, Nick.

Later version refuses to connect to my modem, and goes into security web mode. This modem uses HTTP/HTTPS for access, i.e., connects directly it's IP address, then the user enters a username and password. At that point, the the modem switches to HTTPS for control.

With this recent update, there is NO WAY to access the modem for any work, or upgrade the HTTPS certificate on the modem. This is a BUG.

What should happen is that if the web site will accept a HTTP connection, Firefox should NOT refuse connection or test for security issues UNTIL the user or the device switches to HTTPS.

As an aside, I've used Firefox on this Zywall modem for years until recently.

Firefox uses too much memory, sometimes 20GB on a 32GB Windows machine. It's usually one or two threads which are hogging incredible amounts of memory. This time I had about 30 tabs open.

Today I tried Firefox about:memory "Minimize Memory Usage" several times, and it was largely ineffective.

I did a "create memory dump file" of one 5+GB bloated thread using task manager, but can't find a way to upload the compressed archive with this report for analysis. Finding a way to report this issue was quite a challenge. It seems most help avenues are now missing/moved, and other reports of this type of issue are "Archived".

I tried killing the 2 bloated Firefox threads and checked for tabs which might be missing or malfunctioning. Everything continued to run normally while more than 10GB of memory was returned to system use. Leaving these bloated threads overnight doesn't improve anything, in fact I can often get up and find my machine is completely out of memory because Firefox consumed it all. My smallest machines have 16GB RAM.

These memory issues aren't new. I've been reporting them off and on for more than a decade. They get better for a few months after reporting, then they get bad again in a few more months. The battle to get memory leaks fixed is continuous while Firefox springs more leaks.

I'd like to give you the memory image I generated so you'll at least have some real data to look at and analyze for this report.

The attached task manager snapshot image is a very minor example of this issue. The numbers keep increasing like there are one or more large memory leaks.

Hi, I am using Firefox vsn 120 for Linux Mint. I believe that I have the privacy and security set with the default settings.

However, Firefox seems to forget the information stored by websites, so that can't simply login.

Each. And. Every. Time. I have to go through the process of re-introducing myself to the security of the website provider who insists on sending me emails, SMS messages, etc. with codes to confirm who I am.

This applies, every time I use a site that requires a login (bank, BBC, Fidelity, eBay, Facebook....).

Once I have been approved on a site, then my login seems to work for a few days, up to a week and then off we go again with a new set of security codes. My settings do not delete cookies, and firefox is never closed, except if the PC needs a reboot, which is rare.

I would appreciate any help in settings that would allow me to use Firefox normally without having to enter security codes. Cheers, Mark

Hello,

I just got a new Macbook Air and I am trying to sync my bookmarks and preference etc., from my current Macbook Pro. I read the help articles and one thing I cannot find is a "Sync Now" option on the Air. It is not under the menu icon list. I signed out of the Pro and back in. The user and PW are the same on both laptops. Hoping you can help.

Julie

For the last two months since November 2023), log-in to the Wells Fargo online bank site no longer goes past the log-in page. If I use Edge log-in works fine. I use private browsing on Firefox, but I always have. I have Firefox password enabled, but I always decline to use it for online banking when it pops up (and it doesn't matter if I accept it, still no log-in on Firefox).

I don't want to use Edge but Firefox no longer is working on this task for me.

Yesterday Firefox started closing at random, sometimes instantly as soon as I open it. The crash dialog doesn't open, and if I go to about:crashes my most recent unreported crash is from 2019. Tried refreshing, reinstalling, completely wiping all profiles and starting fresh. If I use troubleshooting mode it won't open properly at all. I am at a bit of a loss, any ideas?

bold textWhy is Mozilla Firefox BLOCKING Kaspersky products, especially Kaspersky Password Manager? It has become an continous on-going problem with many,many people using Firefox which will definitely result in Firefox loosing many users.

Is this another USA bigoted anti Russian propaganda SETUP? Kaspersky is without question, the best protection software on the market. It just works, which is more than can be said about Mozilla Firefox.

Firefox has been my default browser for longer than I can remember. Over the years, I have maintained a significant bookmark file for work. I recently purchased a new computer, and my zero bookmarks from the new computer have replaced all of the bookmarks that I had in my old browser. This is a bookmark file that has successfully followed me through multiple computers and even my ios devices. And now it seems to be completely gone. I've looked at the places.sqlite files, and the largest one is 20MB and is in my current default profile, but it is dated today. That makes no sense because I do not have any bookmarks on this older computer, and my new computer doesn't have any either. The bookmarks have also been completely deleted from my iPad, but miraculously are still on my iPhone (evidently I had signed out of Firefox for iPhone at some point so they do exist somewhere.) The thought of trying to rebuild my bookmarks is nauseating. My only thought is to sign out of the browser on all devices, then sign back in and sync on the phone. Would that repopulate the main file with what's on my phone? Any other ideas?

Firefox V102.0.1 up to date. Right click to open link in new tab - new tab is displayed, link is shown in new address bar, nothing is displayed in the window. Thoughts?

I have been receiving the following error code 'PR_END_OF_FILE_ERROR' on several website on my Firefox browser. Sometime, not all the time, I get the same error message while trying to use YouTube, while other times the site loads but says that I am offline and no internet connection. I have done all of the fixes that they say to use online and nothing seems to work. YouTube will occasionally work but none of the thumbnails will show up. Then there are other site that work fine.

Why is Firefox suddenly not remembering any of my logins or passwords? When I go into Preferences > Security, the box to "remember logins and passwords for websites" is checked. When I click on saved passwords they all are there. The do you want to save box is there if I have changed a login, or added a new web site. I am not in private browsing mode. The problem seems to happen every time I install the latest Firefox update, or Windows 10 Pro updates. Some of my apps want to know if I am using a new device.

So I just picked up a new laptop (ASUS Vivobook 16x), and everything is fresh on it. Additionally, this only affects some video content in Firefox, with Edge browser unaffected. In brief, what is happening is that within a couple hours of having the browser open, certain video content stops working, specifically Twitter/X videos just spin, YouTube previews stop working, and videos continually load. Netflix videos continue to work, but hover previews stop functioning. I even check the 'Stats for Nerds' on YT and it shows 0 KB network activity in Firefox.

I've tried every basic action I can think of:

• Turning off extensions (only use Ublock and Bitwarden)
• Browser Refresh (x3)
• Reverting from 120.1 to 120.0, and now 199.0.1
• Clearing the browser cache
• Reinstalling NVidia and Intel Drivers
• Running in Safe Mode

Only by doing a refresh or completely closing/opening the app gets videos to function again. This doesn't affect the old laptop or my desktop, which makes me think it's a rogue driver--but then why would Edge function without error over the same period of time?

Are there any settings to play with in the browser that can help diagnose?

When I sign in on my Microsoft Account FF Password Manager Does nothing. I open up the passwords but the manager does nothing. How do I correct this? It is as if FF does not recognize I am being prompt for login info. This only happens with this cite. Thank You for your time Mike

I have two monitors, and I usually keep a stream/youtube video open on the second monitor while I browse the internet/play games. I used to do this all the time in OperaGX, but I recently changed to Firefox, and I've noticed that after about 10 minutes, the video or stream stops playing, and I have to manually pause and unpause the stream to get it running again. I have checked online, and I found a fix related to the about:config setting "network.http.throttle.enable" as "false" and the "network.http.throttle.version" as "1", but my firefox already had these settings like this.

Stop tabs from automatically refreshing to top of page. Many people have this problem and I don't find a fix. One article states to go to Options and "Warn me when websites try to redirect or reload the page," but I can't find options.