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I am getting the following error after updating my Firefox installation: XULRunner This profile was last used with a newer version of this application. Please create a new profile.

I have tried creating a new profile and deleting the old ones, restarting Firefox, and even uninstalling Firefox and reinstalling it. The error still persists.

How can I get the error to quit popping up every time I open Firefox?

My windows 7 hard drive crashed and I was able to recover most of the data but I am not able to find my old bookmarks from the old crashed drive into the new working drive. I currently have the crashed drive as a slave drive and can access folders but how do I transfer the old bookmarks to the newly installed hard drive?

Have issue when using Firefox where my PC internet connection gets disconnected. Running troubleshooting I get "The default gateway is not available" and to resolve it has to reset the network adapter. It occurs regardless if using internal Intel Centrino wireless N 6150 or external TP-link wireless Nano USB Adapter. The trigger is larger data upload... such as running a speed test or on a video meeting. Does not occur while using Chrome on same PC. This PC is running a older Windows 7 OS that I am aware is no longer supported. I am wondering if someone has ever come across this issue and know if there is a fix?

Since downloading latest update, requested by the software, it takes 2 or 3 times longer to go to most websites, but it takes 10 times longer to go to a Youtube video. (Generally 10 to 30 seconds).

There’s right-click + “Forget about this site”, but that deletes the information for the entire second-level domain (say example.org).

When in the process of moving things from *.example.org to *.example.com peu à peu, then I need to be able to individually forget say chat.example.org because it’s already moved to chat.example.com but retain all information for other *.example.org hosts.

After the last update in Firefox and Waterfox I haven't been able to login to Ikariam.com. It was working fine before the updates, Suggestions?

Hello,

The Radar map fails, (attached) when View Radar click. I am on a TOSHIBA laptop and I do not notice any other graphics issue. I am using Firefox but other Browsers (Chrome etc) do the same. I am always up to date. There are no add-blockers enabled. I have to mention that on other machine Radar is loaded properly. I have this issue for more than 2 years at least. Can you help me with this please? Thanks!

Regards,

Brad

Under the Applications section of the General 'Tab' of settings I have the option 'Ask whether to open or save' selected. However when I am on a web page click on a downloadable/openable file(which has a app association) - Firefox doesn't ask me whether to save or open - It does both automatically.

I'm using Win 8.1 FF 115.13

FireFox Mozila 115.13esr 64 bit, Suddenly hang while working on 2 to 3 tabs respectively. And In taskmanager It consumes alot of memory and dump the whole system speed.

How can I disable any non essentials background usage or make it light for window 7 with get no load.

Thankyou!

Hi Was told to ask new question off of this tread. https://support.mozilla.org/en-US/questions/1314940#question-reply

I have similar issue. Have file that has all the tab history, but can't get Firefox to recognize or use it. The scrounger pulls up everything so the file is good it seems.

Why can't, or how do we get Firefox to use it?

Thank you

Dear Firefox Team,

It has occurred to my Firefox Browser of the latest version of 115 with some websites I have recently visited however which appear 8 grids of blank or white pages under "Recent Activity" as attached with the image for your technical troubleshooting suggestion.

Those 8 grids of Recent Activity in the older version of Firefox browsers used to have shown colorful graphics or images representative of the recent websites I visited in the recent past.

May I know what I am supposed to do to recover those graphics or images?

Kindly offer any suggestion or solution?

Thank you for your kind attention.

Best regards,

Mr. Topaz Chiu

I just bought a new MacBook Air to replace a Windows 10 laptop which crashed about a week ago. I have my files backed up with Carbonite. I have found and downloaded a copy of my Firefox profile from Carbonite's website. I wanted to restore the profile to the new Mac computer. I have followed the instructions I found online to copy the specific files to the new profile. I finally got the bookmarks file to work, so my bookmarks are now transferred to the Mac. However, the passwords are still not showing up when I copy key4.db and logins.json to the new profile on the Mac. What can I do to get the passwords copied and restored to the Mac?

I do not know what version of Firefox I was running when the profile file was last backed up, but it was supposed to be running the current version when the laptop crashed last week. However, Carbonite shows the date of key4.db to be April of 2019 and the date of logins.json to be 10/8/2022. Should the files be newer? Would they be from an older version of Firefox that's not compatible with the current Mac version? I also just noticed that even though the bookmarks folder was dated 6/9/2024 in Carbonite, the restored bookmarks do not show some fairly recent bookmarks I added earlier this year. Is there any way to get my files back?

The Windows laptop that crashed is stuck in a loop and says it's trying to repair the hard drive. Is there a way to get it turned on but not booted up and connect it via a USB cable and transfer files to the Mac that way?

Thank you.

First, I fully realize that my OS is prehistoric - beyond ancient. I simply cannot afford to upgrade right now - I'm working on it, though. So, since the last update on ESR, everything seems to be working well, browser-wise, except for a sudden change when using FB. They're problematic, so I thought it was something there, but there are no problems with any of my other devices ( 2 phones & an ipad). For most situations on FB, without going into the whys, I need to use my/a laptop, instead of anything else. It has begun freezing and lagging -sometimes, for 10 minutes - after I start typing! And, the emoji panel takes that long to appear, then longer after hitting one! It's basically unusable. I already contacted them, and as previously mentioned, the laptop is the only problem after the last update, the other devices work well, in terms of speed. I'm wondering if there's anything I can do here to remedy this. I have 9 billion bookmarks and my settings are set in stone, so I can't risk losing any of that by reinstalling, or anything like that. I've been with Firefox since it became available, many years ago, so I'm not willing to sacrifice anything I've collected. All was fine, until this last update. And, I'm working on getting another laptop. Thank you for your time.

I just got my PC back from the shop. It's the best LG Gram laptop they had with Windows 11, and it's 1-yr old. Much on it was corrupted and I'm having to reload many items, one being my Firefox. It wouldn't open up. I did the right-click on my mouse and hit the OPEN selection. Firefox still wouldn't open up. I reloaded Firefox hoping that it would correct whatever may be wrong. No, it still won't open up. I'm reaching you now via TOR. My TOR was also reinstalled, but it is able to open up. Can you think of what I may have done wrong? [I'm unable to check the option-email me when someone answers my thread {this email must be a thread}, but this will be fine.] Please note that I am so NOT tech-savvy, I don't even have any smart/mobile/cell phone. Just a plain old phone. (I should add I'm in my 70's, ill, and in a Nursing Home.) I looked through your troubleshooting sugggestions, but they are too fancy for me to understand. I'm not sure how this works, but I sure do hope you can offer some suggestions as to what I can try. Thanks so very much for your time and consideration of this matter. It's very much appreciated.

I provide IT support for an 80 year old friend. He uses Windows 7 and Firefox ESR. He has Firefox home as the home page. He had 3 rows of icons showing on Firefox homepage. However today the home page did not show any icons when Firefox was started. Since then about 10 websites have been visited but only 2 show on the home page (Settings Home Shortcuts [for sites saved or visited] is ticked with 3 rows specified. Saved bookmarks are still present as are the saved login credentials.

Any ideas as to why the home page 'lost' all the icons? Why are many of the visited sites not showing on the homepage and how can they be shown? Are there any criteria that apply before a visited website shows on the Firefox homepage?

Thanks for any advice.