Firefox Support Forum

I am trying to download a spreadsheet file which has a .xlsx extension. Firefox insists on downloading the file (my default action) but I want to be given the option to open in my spreadsheet program (Libreoffice).

Looking in Settings and scrolling down to Files and Applications -> Applications, there are other spreadsheet formats present but not one for .xlsx. How do I add the "Always Ask" option for .xlsx files?

Libreoffice is the default system application for opening these files.

I first thought this issue was contained to a single website and was the fault of their IT, but I have begun to experience this issue on other websites, and it does not occur on other devices also using Firefox. It is difficult to explain given that I don't have any idea what is actually happening, but hopefully I can make it clear enough.

For some websites that require a username and password, I will correctly login and pass authentication but then I will be booted back to the initial login screen, almost like the login failed. I only know that it is technically a log out, not a failure, because I have briefly seen the URL change like I'm logging out. I have tried uninstalling and reinstalling Firefox fresh multiple times on my Windows 11 laptop, but the same issue occurs consistently.

This happened when I was trying to login to the student portal for my university and when I was trying to login to my apartment's resident portal. Changing cookie settings or going into a private browser has not helped at all. I cannot tell if this is a bug with Firefox (maybe just on Windows 11?) or if there is some background setting that needs to be adjusted, but it is very frustrating. If this keeps happening, I would have to switch to a different browser, which would not be ideal.

Does anyone have any idea of steps that I could take for troubleshooting or any experience with similar issues? Any help would be greatly appreciated.

Hello Please explain to me how to transfer tabs from desktop to Android phone because there is no option on my desktop browser settings and no matter how much I sync, the desktop tabs will not be transferred to the phone again. please guide me

When I look up the error message I get, everyone I see who got it can't open Firefox, but I can open it fine. For me, I have Firefox as my default browser and when another program (tModLoader on Steam) tries to open it, it gives me "Profile Missing," "Your Firefox profile cannot be loaded. It may be missing or inaccessible." I don't know if it gives the same error for other programs because I can't think of any programs that open my default browser. When I switch my default browser to Edge, the program can open Edge fine.

My old 2009 MacBook Pro broke, got fixed, and now the backup won't transfer. So I need a new Firefox.

OS X El Capitan V10.11.6 is the latest this old computer will handle. On the mozilla.org download page, the app on the .dmg that gets downloaded says it wants OS X 10.12 or later.

I'd appreciate your suggestions.

--Gil

Comments below youtube videos won't load. This happens across all browsers on this computer regardless of add-ons or being logged into youtube.

I've attached a screenshot that shows that 176 comments are below that video but none load. I'm using the latest Firefox version on Windows 7.

If you need any extra information I will gladly provide it.

My bookmarks toolbar is empty. When looking through the bookmarks menu, it shows that none of my bookmarks have been removed, and they are all still listed as being present in the Bookmarks toolbar, but they are not displayed in such. To be clear, bookmarks toolbar is enabled, and I have already verified its positioning in the customize toolbar pane. There is a strip of empty space where they used to be, but they are simply missing now. How do I fix whatever issue caused the toolbar to cease displaying my bookmarks?

In the bookmark-bar in my Firefox-installation contains the soft-button for the function "Import bookmarks". I do not need this function always showed in the bookmark-bar. How can i remove it ?

I am using Firefox Version 101.0.1 (64-bit) for Desktop Windows 10 64bit (newest version (see question date for lookup info)).

This problem I could not find anywhere in this Firefox self support community. I think I discovered a bug in the firefox settings, but it might just be me missing something, but I doubt it, being familiar with the settings and them being clearly worded.

I can not seem to get my firefox to save the website always allowed to keep cookies stored between sessions (and their cookies / other data obviously also don't get saved between sessions). - maybe there arises a problem with the setting of never saving history between sessions?

Please, have a look at my current settings below (two screenshots): <image 1 (longer one)> <image 2 (shorter one, custom history settings)>

The settings being written as they are should mean that the always allowed websites should never have their cookies deleted between sessions, regardless of their history (their being visited) being deleted. To me this is frustrating and appears like a bug and not a feature.

Maybe is history is deleted all site permissions and data get deleted, too? - (If yes, that is clearly not what the settings suggest, and if it is supposed to work like this, I strongly suggest the Firefox Dev.s team to fix the confusion or add some feature work-around to suit my use-case. The internet is not a safe place anymore, generally, but some parts are, let me trust your settings do what the say they do, at the very least. Thanks in advance.)

Whenever I attempt to access DRM content such as netflix or spotify I am notified that the WidevineCdm plugin has crashed. I'm running firefox version 101.0.1 on Kubuntu 22.04, I am running the debian package release, but I had this issue with the snap version too. I've submitted crash reports, but they're all "EMPTY: no crashing thread" (https://crash-stats.mozilla.org/report/index/20af09a5-6bc4-4719-9242-38f5c0220614 here's one).

Getting error SSL_ERROR_BAD_CERT_DOMAIN on all my sites that are signed with a SSL Cert from my internal CA since updating past version 99

This appears to be a bug starting after Firefox version 99 on Windows because after i upgraded to Firefox version 100 i started getting this on all my SSL Certs from my CA and they worked fine prior to the update. Can anyone confirm if something changed after version 100 that is causing this?

Thank you.

Hello, I experience a XUL Runner error message after attempting to update Firefox and in following the guidance to rectify the error deleted the Firefox folder including the bookmarks. Is there anyway of recovering the bookmarks (maybe with a third party program) or are they lost forever? Thank you.

Instacart webpage suddenly will not display/open on Firefox but can display fine on Chrome. Instacart App on mobile phone works fine, just won't open in Firefox. Any suggestions other than using Chrome? Firefox version 101.0.1 Windows 10. Was working fine until latest update installed this morning.

Firefox wasn't working well on a seldom-used laptop, and the update to 100.0.1 didn't go quite right, so I deleted the old version and (using the odious Edge) tried downloading a fresh copy of the software.

But then I get a message from "7-ZIP" that reads "Can not create temp folder archive"

I'm stuck. Advice?

I was using Firefox on windows 10 laptop, everything was synced with my account. Now after switching to Ubuntu I can't see my bookmarks, Just an empty toolbar. Now I don't have access to my old laptop, I sold it.

Any help?

I've been using Firefox almost exclusively for years now, and it's always worked flawlessly - until recently! Now, when I log into my GitHub account, I can no longer edit and commit my changes.

When I click on the "pencil" on a rendered page, I am taken to the "edit page" where I can make my changes (in markdown), preview those changes (rendered in markdown), and then commit those changes. Beginning very recently (within the past few days), the preview tab is no longer functional, and I can no longer commit my changes to the file.

I've verified that GitHub has not changed their interface by logging in from my Chrome browser, and following the exact same procedure used in Firefox everything works as it always has.

I recently upgraded from ver 99 to 100, and now to 101.0.1. I recall clicking a pop-up immediately after the 99-100 upgrade that had something to do with cookies... sorry, I know that's lame, but it's all I can recall now. In any case, I am certain this happened recently.

Please help... I have to use Chrome for a couple of things already (my brokerage account at Vanguard for example), but I despise Google, and want to limit their spying.

Thanks,