Firefox 社群討論區

When trying to open Firefox, it asked for a password--it hasn't done this before. No password was ever set up for my wife on this computer. She enters her password to open the computer from sleep but that does not work and Firefox just bounces in the dock. There is no message asking if the password needs to be reset, the icon just bounces. There was a message from the Apple settings about Firefox running in the background. Restarting did not work after several tries and Firefox worked under my identity. We decided to shut down the computer and I logged out and then went to my wife's identity to shut down but decided to try Firefox one more time and it worked. That's great, but I want a better understanding of what happened so I am prepared if it happens again.

I run normal firefox on linux. Fully up-to-date. Every time I quit the app, it reverts to a version of my profile from a month ago, and loads all the tabs I had open then, and then receives all the tabs that I sent to the device in the interim (~1 month). As I speak, it just caught the 60 or 70 tabs in this window.

I tried changing the name of my profile folder to randomstring.defaultOLD and changed one of the backups to randomstring.default. This didn't change the behavior. I'm still stuck in the loop. I saved my tabs with onetab, because firefox isn't remembering my session anymore. I thought it was something to do with updates, like it only loses its mind upon updates, but that's not true. It thinks it's updating firefox EVERY TIME, because the one time it's loading to 1 month ago it was updating, but I'm 100% sure there are no updates to firefox in my linux. It's just hallucinating.

The articles on restoring from backup are outdated. They say to use an html file. There is no html file. It's just folders for profiles, not html files. HELP!

Hello,

For some inexplicable reason, when I visit any Wikipedia page (as of Thursday 8th October 2026), the pages display with a huge oversized font that also impacts the format and layout of the page in my browser. I have not made any adjustments on my PC to increase font display size. Wikipedia is the ONLY website that displays in this manner.

I am running Firefox 115.42.0esr (64-bit), which appears to indicate Firefox is up-to-date on my Windows 8.1 desktop PC. Please note that I am still running Windows 8.1 on this device out of choice.

I reported the fault initially to Wikipedia itself, and the response is that any fault is at my end. I have visited the same Wikipedia pages via Chrome Version 109.0.5414.168 (Official Build) (64-bit) and the pages display normally.

I have attached a sample screenshot to illustrate.

Any ideas how I can resolve this issue please?

Many thanks - Dean

With the push towards 2FA in many websites, I now need to use an authenicator, passkey, or physical token to access some websites.

I've chosen to use authenicators and physical tokens as my means of doing so.

However, whenever I try to use a physical token to access websites while in Firefox, there's no way I can find to do so. Firefox seems to default to passwords or authenicators... and there's never any way to actually select the physical token plugged into my USB socket.

So how do I get Firefox to recognize a physical token and to allow me to use it when accessing websites that I've already prepped to accept them?

It is extraordinary that Firefox staff have become comfortable with their browser working, possibly, on some machines and not at all on others; and you got Firefox working again and then the latest update brought Firefox back to not working at all. Firefox updating is being done with unbelievable incompetence. It has been months and months since Firefox has worked properly on this Windows 10 computer; and in the past three or four months, Firefox has not worked at all most of the time. Over that same period of time, Microsoft Edge has been working ALL the time. You are going about updating all wrong! I really regret downloading this latest update! You have grown unconscionably comfortable with Firefox being a total DUD!

Don't know where it should be. But here is the issue: I check my personal email often, so I used to open Firefox, click the address bar, and my Outlook would be at the top. Now, for whatever reason, Firefox tries very hard to make that disappear, even though that is my most-used website. First, it'll drop a few places in drop-down, then some more, and then disappear. To bring it back, I'll have to delete unwanted links (the ones I open like once a month!) from history, and after quite a bit of work, Outlook will be back. Then rinse and repeat.....How can I fix this?

Hello, I installed the Firefox 158.8 update on my iMac (macOS Sequoia 15.8.1) today. All websites are working as usual, except for Amazon Prime Video; it loads once and then freezes. I can't perform any actions on the page—everything remains unresponsive. I can't enter a different URL in the address bar or reload the page, either. The only thing I can do is close the page. I’ve cleared the cache and disabled ad blockers, but nothing changes. Strangely, this doesn't happen with Firefox on my MacBook. What could the problem be?

regards Burkhard

I have been using Firefox on my Mac computer at home and on my Windows computer at the office. Firefox started launching automatically when I booted up my office computer. This only began quite recently (since last update?). When I went to undo that setting, the browser prompted me to sign in, which had never occurred before to my recollection.

Today when I logged on to my home computer and launched Firefox, all my bookmarks had been changed to my work bookmarks.

Can my home bookmarks be retrieved?

Hello again.

In 2023, when I had Firefox v110.0.1, an unfortunate hiccup caused my handful of windows and their many tabs to not appear when I restarted Firefox. I asked for help here and jscher2000 was lovely and walked me through some things to do, which are discussed in https://support.mozilla.org/en-US/questions/1408206 and https://support.mozilla.org/en-US/questions/1396868.

Unfortunately, though I now have Firefox v158.0, this happened again a few days ago and I've been trying to retrace his steps the best I can with the newer version, but to no avail, unfortunately, partly because I don't now see a sessionstore.jsonlz4 file that jscher2000 referenced back in 2023.

(As I remember it, a system upgrade was taking place on my PC, and, also, a new version of Firefox {the v158.0 I mentioned} was also being installed, too.)

I found a Profiles folder (C:\Users\Bram\AppData\Roaming\Mozilla\Firefox\Profiles\p9f543mv.Default User\) that seemed to be relevant, and found a sessionstore-backups subfolder there. However, while that subfolder did NOT have a sessionstore.jsonlz4 file, it DID have files named previous..., recovery..., and (possibly connected to one of those updates), an upgrade... file, too.

When I first found this subfolder (in that "Roaming" area...I looked also in the "Local" area but wasn't confident I found anything more relevant), I copied/renamed previous... (with a timestamp from around the time of that system update, and large filesize) to previousOLD..., and the MUCH smaller recovery... to recoveryOLD, similar to the instructions in those threads. However, even if I also copied that previous... file to sessionstore... (to match those earlier instructions), Firefox would launch but with only the most-recent tabs (i.e., the Advanced Preferences {about:config} tab along with about:support {to provide Troubleshooting Information}) showing, as I'd launched them as part of my efforts to restore the session, and nothing else.)

I have "healthily-sized" recovery... and upgrade... files with the same date/time-stamp and filesize, though my efforts to try to get Firefox to open correctly have removed a similarly-sized previous... from that folder unfortunately -- hopefully the fact that recovery... and that upgrade... file have similar sizes mean they might(?) be valid substitutes for previous... should one be needed.

I hope that this described my situation well, but am happy to answer any questions you might have about it to the best of my ability.

Clearly, Mozilla updated some Firefox characteristics in the intervening three (3) years but I'm not sure how to adapt the new set of filenames to those previous instructions although, as I wrote, maybe one of those larger files will end up being what Firefox uses to try to restore everything...I just don't know what to do with it (i.e., what to rename it and/or where to copy/paste it) in order to make that happen.

Can you please offer some advice in this regard?

Thank you very much, Bram Weiser

I want to use your built in VPN. Every time while I follow instructions the process becomes circular. ie., when asked to click on VPN icon the same dropdown menu appears to activate by clicking on VPN button

Hi Guys,

 My password for MasterCard never reloads anymore.  I've followed all your recommendations and turned on "ASK FOR LOGIN" but nothing works.  
 It use to work before MasterCard changed the website to Citi Bank.
   Whenever I typed in the first letter of my username it would fill in the address automatically....
but now I have to type in the whole address every time ........

I've called MasterCard and they said call you ???

Thanks for your help, Peter Carbone

I have a lot of bookmarks and am always adding new ones. Suddenly, a couple of weeks ago (Oct 2026), when I go to bookmark a new page, the star goes from clear to filled-in dull grey, not bright blue as it always used to. In the same way, when I go to a previously bookmarked page (and I've checked this on about 30-40 sites, so it's not a specific site), the little star is dull grey, not blue. I can't make any new blue stars and I can't turn any old ones blue again. They are all dull grey and I find them hard to distinguish. Was this part of the recent Firefox 'new look', and if so, can anyone help me get my blue stars back? I'm using desktop (not phone).