large amount of RAM

Gentlemen, isn't your browser using a lot of RAM? I've been freaking out about it in recent years. That's only with 25 tabs open!! Despite the fact that the system was in… (pročitajte više)

Gentlemen, isn't your browser using a lot of RAM? I've been freaking out about it in recent years. That's only with 25 tabs open!! Despite the fact that the system was installed just a day ago, without any tweaks!!!

Open 15

“YouTube videos are always choppy” is much more helpful than “something is broken”.

Mozilla does not provide telephone support, does not charge for downloads, upgrades or technical support and does not endorse any company that does. Companies that ask fo… (pročitajte više)

Mozilla does not provide telephone support, does not charge for downloads, upgrades or technical support and does not endorse any company that does. Companies that ask for payment or personal information for installing, updating or providing support for Firefox or Thunderbird are not affiliated with Mozilla and should be avoided.

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new versions

with the last and now the most recent Facebook versions i ahve beem having problems with Facebook, now it may be Facebook but i have it more on Firefox even with… (pročitajte više)

with the last and now the most recent Facebook versions i ahve beem having problems with Facebook, now it may be Facebook but i have it more on Firefox even with extentions shut off i get i what is it please help

Open 4

How do I add the Firefox icon in top left?

In Windows 11, how do I add the Firefox icon to the extreme top left of its webpages? When I switch tabs to Firefox, typically using Alt+Tab, I am often unsure at first… (pročitajte više)

In Windows 11, how do I add the Firefox icon to the extreme top left of its webpages?

When I switch tabs to Firefox, typically using Alt+Tab, I am often unsure at first which program I am in. I have searched Firefox settings, and googled extensively, and there seems to be no way to add the icon back. I believe that it was once there, but I am unsure of this.

Almost every other program places its icon on the top left of its pages. Surely it is possible to do the same in Firefox, which just has an empty space there.

(But I am wrong on the last point, because Edge, which I rarely use, also has no icon there. Surely Firefox does not want to share any problem that Edge has!)

Open

i bougt a ugreen nas,bt mozilaa firefox didnt show in applicatin store

i had ask the servicefrom ugreen nas why they didnt provide a firefox app in nas store , they said which i am using a global version ,not a local version of nas , and fi… (pročitajte više)

i had ask the servicefrom ugreen nas why they didnt provide a firefox app in nas store , they said which i am using a global version ,not a local version of nas , and firefox limited provide to china local user , is that real ?

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After updating Firefox, all my bookmarks disappeared, the backup file is nearly empty, and they're not syncing from my account—is there any way to recover them?

I updated Firefox a few minutes ago and closed everything to let it finish. When I reopened it, all my bookmarks were gone. I checked the restore option in the Bookmarks … (pročitajte više)

I updated Firefox a few minutes ago and closed everything to let it finish. When I reopened it, all my bookmarks were gone. I checked the restore option in the Bookmarks menu, but only today's date was available, and clicking it did nothing. I found the bookmarkbackups folder in my profile directory, but there's only one file—859 bytes, which is basically empty. I'm signed into a Firefox account now, but my bookmarks aren't syncing from the server, which suggests they were never synced. Is there any way to recover them, or are they just gone?

Open

Firefox вылетает при загрузке Faceit Anti-Cheat.

I already left a topic here on this issue, then no one could help me, in general, the problem appeared a month ago in me, as after I reinstalled Windows, downloaded the f… (pročitajte više)

I already left a topic here on this issue, then no one could help me, in general, the problem appeared a month ago in me, as after I reinstalled Windows, downloaded the facit anti-cheat steam browser and went to play facit, since facit requires some settings in the bios for it to work, when downloading the anti-cheat, it asks to restart the computer, it asks for tpm 2.0 secure boot , VBS , iommu , and so I thought for a long time what could be the problem that it is after installing the anti-cheat facit that the browser breaks. As a result, I found out that it is when the iommu function is enabled in the firefox bios that it breaks , if you disable this setting, the browser works, although it gave an error before and did not start at all, I spent a month trying to figure out what the problem was, I am a Windows optimizer and I had custom windows and a lot of different settings for optimizing windows, but now I have installed official windows and the problem is still there, it turned out that it is far from in windows and windows optimization, because I have many friends who use custom windows and optimization settings and everything works for them, and so I found out that it's about iommu , just a couple of days ago, I updated the bios, I had the old version, now the newest one is still present, if there is, then help me figure it out.

here is the error code from the "details" by the way, not only firefox breaks, but also chrome, brave, etc.

AvailablePageFile: 37469605888 AvailablePhysicalMemory: 32424693760 AvailableVirtualMemory: 138531310682112 BackgroundTaskMode: 0 BuildID: 20260403140140 CPUMicrocodeVersion: 0xa20120a CrashTime: 1775599624 DOMFissionEnabled: 0 DOMIPCEnabled: 0 HeadlessMode: 0 InstallTime: 1775587593 LastStartupWasCrash: 0 MinidumpSha256Hash: 89a8c6296c245dae30e1562163d1ec0d37df24dffa0a6e612f9294854213f8ff ModuleSignatureInfo: {"Mozilla Corporation":["firefox.exe","xul.dll","gkcodecs.dll","nss3.dll","mozglue.dll","lgpllibs.dll"],"Microsoft Windows":["dbgcore.dll","winrnr.dll","twinapi.dll","wshbth.dll","pnrpnsp.dll","NapiNSP.dll","netprofm.dll","npmproxy.dll","dhcpcsvc6.DLL","dhcpcsvc.dll","winnsi.dll","DWrite.dll","dbghelp.dll","winmm.dll","Windows.UI.Immersive.dll","twinapi.appcore.dll","InputHost.dll","WindowManagementAPI.dll","textinputframework.dll","Windows.UI.dll","ktmw32.dll","wsock32.dll","version.dll","propsys.dll","WinTypes.dll","CoreUIComponents.dll","CoreMessaging.dll","nlaapi.dll","uxtheme.dll","dwmapi.dll","kernel.appcore.dll","windows.storage.dll","ntmarta.dll","IPHLPAPI.DLL","dnsapi.dll","mswsock.dll","CRYPTBASE.dll","wldp.dll","ntasn1.dll","ncrypt.dll","msasn1.dll","profapi.dll","bcryptPrimitives.dll","msvcp_win.dll","ucrtbase.dll","cfgmgr32.dll","wintrust.dll","gdi32full.dll","crypt32.dll","KERNELBASE.dll","win32u.dll","bcrypt.dll","sechost.dll","SHCore.dll","user32.dll","advapi32.dll","kernel32.dll","nsi.dll","gdi32.dll","ws2_32.dll","rpcrt4.dll","shlwapi.dll","ole32.dll","shell32.dll","oleaut32.dll","msctf.dll","combase.dll","msvcrt.dll","psapi.dll","clbcatq.dll","imm32.dll","ntdll.dll"],"Microsoft Windows Software Compatibility Publisher":["msvcp140.dll","VCRUNTIME140.dll","VCRUNTIME140_1.dll"]} ProcessType: main ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox ReleaseChannel: release SafeMode: 0 SecondsSinceLastCrash: 12318 StartupCacheValid: 1 StartupCrash: 1 StartupTime: 1775599624 SubmittedFrom: Client SystemMemoryUsePercentage: 5 Throttleable: 1 TotalPageFile: 39652315136 TotalPhysicalMemory: 34283606016 TotalVirtualMemory: 140737488224256 UptimeTS: .2474393 Vendor: Mozilla Version: 149.0.2

Open 6

How to sync two profiles separately for use on multiple devices without mixing up the data between the two profiles?

I have two profiles, one for work and one for my personal in the same account. I need to sync both of my profiles but do not want the information in the two profiles mix… (pročitajte više)

I have two profiles, one for work and one for my personal in the same account. I need to sync both of my profiles but do not want the information in the two profiles mixed together. I need to sync the information as I have a desktop and a laptop that I use for work, and mobile devices and another laptop for personal matters. If I am on work travel and need to access my personal profile on my laptop (because schlepping two machines is silly!), I want to switch my profile to the personal one. then when I am done I want to switch back to the work profile. How can I do this and is firefox set up to do this?

Open

Unable to add icon bookmark to new tab page

Hi, Lately I haven't been able to add a bookmark icon on my 4-row new tab page. There's still to empty spots I would like to fill but can't find the usual + button. Thank… (pročitajte više)

Hi, Lately I haven't been able to add a bookmark icon on my 4-row new tab page. There's still to empty spots I would like to fill but can't find the usual + button. Thanks for the help

Open

blink of white starting firefox 150.

since v150 came out ive been having an issue where i get a flash of white on start up if i have Homepage and new windows as Firefox home with a wallpaper... i have re-ins… (pročitajte više)

since v150 came out ive been having an issue where i get a flash of white on start up if i have Homepage and new windows as Firefox home with a wallpaper... i have re-installed firefox and tested it as default and it still happens. seems the wallpapers have a delay till it displays properly.

Open 1

How to bypass SEC_ERROR_REUSED_ISSUER_AND_SERIAL error for local devices

I'm reposting a question already opened here because a moderator suggested to do so. Actually I though I was posting to the international forum from the URL... I was tryi… (pročitajte više)

I'm reposting a question already opened here because a moderator suggested to do so. Actually I though I was posting to the international forum from the URL...

I was trying to access a local HTTPS website of an embedded device (a Siemens S7-1500 PLC) that is using a self-signed certificate, but was unable to go on (attached image #1, in Italian language) due to the the SEC_ERROR_REUSED_ISSUER_AND_SERIAL error. I've browsed a similar PLC webserver in the past, so the fact that the device exposes a similar certificate serial number is not so strange for me, considering also it's self-signed.

The problem is that I cannot follow the instructions of the Mozilla knowledgebase here because I'm not able to identify the correct certificate of the website!

In the attached image #2 you can see that the connection is detected as not encrypted, I suppose because only the form part of the HTML that is posting the data using HTTPS while the rest is using HTTP, but I'm not sure. If I click on the padlock icon (attached image #3) the info about the current certificate is not displayed.

Then I went into Tools > Options and searched for "certificates"; as you can see in the attached images #4 and #5, neither in the Servers tab nor in the Authorities tab I can find any item that is related to 192.168.10.2 (the webserver IP address) or Siemens (the embedded device manufacturer). But unfortunately the error persist! Initially there was a 192.168.10.2:443 line in the Servers tab and I removed it and restarted Firefox, but it didn't solve, so at the moment the situation is the one depicted by the attachments.

I had to use Microsoft Edge to access the website, but I would like to solve this issue and use Firefox instead. Is there anything else I can do to bypass the error? Why doesn't the error page provide a way to correctly identify the wrong certificate using its fingerprint and/or name? Or, maybe, is there a way to disable this check for local IP addresses or for items in a whitelist?

Thanks for your help.

Open 4

Snooze tabs not working after update, suggestions please?

Hi all, After the last update the former Mozilla Test Pilot "Snooze Tabs" isn't working for me any more, I tell a tab to snooze and it just stays where it is. https://add… (pročitajte više)

Hi all,

After the last update the former Mozilla Test Pilot "Snooze Tabs" isn't working for me any more, I tell a tab to snooze and it just stays where it is. https://addons.mozilla.org/en-GB/firefox/addon/snoozetabs/

I've tried running with addons disabled and then running with addons active again and the behaviour is the same. It's the same behaviour whether I run from the toolbar or the context menu.

I'm presuming this problem is related to Firefox update mechanics. Any suggestions for how to get this working again please?

Cheers :)

Open 6 2

9gag website performance issue.

Hello brothers and sisters, i am need help! I'm experiencing performance issues when surfing the 9GAG website. The amount of RAM consumed by this page is growing exponent… (pročitajte više)

Hello brothers and sisters, i am need help! I'm experiencing performance issues when surfing the 9GAG website. The amount of RAM consumed by this page is growing exponentially. It's gotten to the point where this tab can consume up to 5GB of memory, and that's not the limit. This issue hasn't happened before. I can't figure out what's causing it.

What I did to fix the problem: I reinstalled the browser. I reinstalled add-ons. I reset my old profile, saving only bookmarks and passwords. I reinstalled the operating system. None of this helped. However, my friends don't have this problem with this site. Please help.

Open 1