Firefox Community Forum

I am on a Windows 10 Pro PC 64 Bit OS with 16GB of memory, running Bit Defender Total Security. I have used Firefox for many years and have never had a problem The browser is version 128.0.2 (64-bit). A few days ago in the application menu told me there was an update and said to install it because it couldn't check for updates. I downloaded and installed it three times now, but the problem still persists. My Bit Defender also keeps popping up messages telling me "firefox.exe attempted to establish a connection relying on an unmatching security certificate to aus5.mozilla.org. We blocked the connection to keep your data safe since the used certificate was issued for a different web address than the targeted one." I have had over 2000 of those messages in the past few days.

I have never had an issue like this before. Is there a glitch in the most recent update? What can I do to fix it outside of resetting my browser, which logs me out of my google accounts and causes me to not be able to get back into them.

I want to continue to use Firefox as usual , but this is not possible because of the continued message about the "wrong address" related to the URL . I have changed nothing , and i dont understand . PLease will you fix it .

Hi there, Mystery bug. Each time I shut pc down (not complete power down) I loose the sidebar column. I checked View/sidebar/bookmarks has a tick, and all appears correct. I reloaded FF and issue still present. Whats the hoedown on this ?

regards rj

I have a lot of tabs open, and I don't know which are responsible for the popups. Previously, I'd get 2-3 unexpected popups per day (that were not triggered by navigation in visible tabs), but since yesterday, every ~10min I'm getting 2 popups right after each other.

How do I find out what tab is triggering them?

Besides the annoyance, I find it worrying that firefox apparently "intends" to input login details into background tabs - if I had entered my master password previously, I wouldn't even notice that the password store had been accessed.

It would be really nice if the master password popup had a button to view the triggering tab (and perhaps highlight the fields that would have been filled after unlocking), but until that happens, I really need some way to locate the problematic tab(s)...

I was using Firefox for last 5-8 years and all data was saved. Few days back i was started using Linux Debian 12. i tried to login for sync but , after logging all data was erased. I tried from windows also , no data.

I run Firefox on two windows machines, with identical settings and extensions - I regularly sync across them, and have all my passwords saved to a local file, just in case. Recently, one machine (the only one with Win11) has begun disconnecting me from Mozilla every time I close Firefox, and wiping the saved passwords. I have to sign in to Mozilla and import all the passwords every time i reopen Firefox. I have tried all the refresh, reinstall options and nothing seems to fix it. Any ideas what's going on and how to fix?

Ive already changed my firefox language in settings, restarted firefox, restarted my mac. All to no avail. The finderr download dialog box is still in spanish. The rest of firefox is in english, my computer is in english and its set as a main language. I simply dont understand. Ive asked chatgpt and the answer is the same "change firefox language settings"... but my settings are in english already

Here is the message". SearchTelemetry: Expected to report URI for https://www.google.com/search?client=firefox-b-1-d&q=tokina+11-18 with ads but couldn't find the information SearchSERPTelemetry.sys.mjs:1624:23

TypeError: linkMap is undefined     Links_onLinkChanged resource://gre/modules/NewTabUtils.sys.mjs:2003     PlacesProvider__callObservers resource://gre/modules/NewTabUtils.sys.mjs:697     handlePlacesEvents resource://gre/modules/NewTabUtils.sys.mjs:671 NewTabUtils.sys.mjs:699:19 SearchTelemetry: Expected to report URI for https://www.google.com/search?client=firefox-b-1-d&q=tokina+11-18 with ads but couldn't find the informationbold text

Currently on firefox 128.02 macbook pro Sonoma 14.5

I've done some research but haven't yet found what I can do to remedy this error. It only happens on some websites but is repetitive and cannot be overcome by reboot of mac or firefox. I've only seen it the last couple of weeks so it may be due to a firefox change though I'm not sure. Thanks for any help!

I have used Firefox since it was Netscape, with an ad blocker if one was available. With version 128 I am seeing many, many, many ads where I used to see almost none. I have blocked popups but that's not as much help as you'd hope. I cannot find anythng like AdBlock+ or U Block. Are these no longer available? No longer recommended? I can tell you that they are sure still needed. Thanks.

Cannot print Firefox web pages (using Microsoft Print to PDF) or hard copy (with Brother printer) at my account on this computer. Goggle Chrome and MS Edge print web pages normally. Other accounts on this computer can print Firefox and other browser web pages normally. 'Have uninstalled and reinstalled Firefox at my account but no fix. Problem started about 2 months ago at my account on this computer (running Win11 Pro). 'Have consulted Microsoft "Help" but their tech/"bot" said it is a 3rd party (ie. Mozilla/Firefox) issue and not solvable by Mictosoft.

Using MS Print to PDF, only a blank PDF page is printed. The Brother printer never even starts when selecting it as the printer.

Hi,

I have used Firefox for a long time. I have many bookmarks, passwords etc on Firefox on my original PC.

Sadly the hard drive on my original PC has failed. I borrowed a laptop temporarily and signed into Firefox on that. My bookmarks did not transfer across and instead I had someone elses bookmarks but I wasn't too concerned as I was only borrowing the laptop.

I now have a new PC. I have restored my files from a backup external drive and I have signed into Firefox on this PC. However, all of my tabs and bookmarks have not come across. I have pressed sync but it has brought the bookmarks over from the laptop and not the bookmarks from my original PC.

How can I sync to the original PC that has all my bookmarks etc please? Or have I lost it all forever?

Thank you.

I have done every single thing including reinstalling Firefox. The Youtube videos will not buffer in my Firefox browser in ANY mode, safe, troubleshooting, etc. I got it to start after reinstalling then about a minute into the video it started buffering again. I can watch vids in ANY other browser, and am connected by ethernet to my router.

After the last 2 updates, firefox will have over 50 processes open (only 3 tabs). The task manager shows high usage (red). Then firefox just disappears (stops running, no errors). I have to restart firefox and then takes forever to reload the previously open tabs

Here lately I have to double click almost everything to get it to load and firefox keeps slowing down and stops the page from loading ?? Need help to fix it !

For many years, I have paid my telephone bill on-line using Firefox. Suddenly, I can on longer access <frontier.com> using Firefox. Chrome works find using the very same URL. But once inside the home page for Frontier, I can no longer login using Firefox. Grateful for any help. Thanks Email removed for privacy reasons