Firefox Support Forum

hi, all of a sudden today, my files i am saving on my Canva are downloading to zipped files - they were fine and now, zipped . What have I clicked fo make this happen and how can I go back to the way it was please I have tried everything in settings on all sorts of pages and can't see what I have done it was fine earlier so I have done it I suspect can you please talk me through it step by step as I am not too good at following tech instructions from people who know what they are walking about thank you :-)

Firefox on Windows 10 desk top suddenly stopped working with error message

XUL Runner Error. platform version 127.0.1 not compatible with Min version >= 127.0 Max version <=127.0

N.B. This is another machine - not this lap top

Please advise

I was using Firefox when suddenly it was no longer there. When I clicked on the icon, it reopened, with all my bookmarks and history, but no tabs! I stupidly shut it down again. The forums all said to just go to History > Restore Previous Session, only there was no such option in History. I tried to do a Windows System Restore to several days ago, but it keeps failing and suggesting that I turn off my anti-virus, which I have. Further reading in the Mozilla forums said to take an old upgrade.jsonlz4-20240618110440 (or whatever date) file from the sessionstore-backups folder and move it into the main profile folder and rename it sessionstore.jsonlz4 (I can no longer use the recovery.jsonlz or previous.jsonlz files because I'd stupidly shut down Firefox after it had loaded with no tabs). I have done this and restarted Firefox, but still get no tabs. That file is huge (22MB) and I've examined its contents and can verify that the tabs are there. So why isn't Firefox reading it when I run it and displaying my tabs? I did see that other people on the forums had this problem but I didn't see a solution. One remote possibility may be that my current version is 127.0.2 (64-bit), while the upgrade.jzonlz... file was clearly generated as a snapshot of when the version was 127.0.1. What can I do to restore my tabs, in light of the fact that I don't have a recovery.jsonlz or previous.jsonlz file with the tabs any more and Windows System Restore is unable to restore my system to several days ago?

For some months now I have been finding that, when I try to log on to the BBC website or the Youtube website using my default browser Firefox I get a timed out message. However, both websites usually open when I try for the second time. This never happened before. For both sites I log on from Windows 10 desktop icons. This defect is now annoying me so much I am inclined to switch to Chrome or Microsoft Edge as default browsers where the problems do not occur. I have tried a number of suggested solutions shown on line but nothing has worked to date. Before I switch default browser I will try further suggested solutions if anyone has any.

Hi, I am a big fan of Firefox Sync in general, and of the "send tab to other device" feature in particular. I have Firefox on all my devices (Android phone, iPad, PC, work laptop and a laptop in a cabin) and while I'm browsing, I do send tabs to other devices a lot, because it's a cool stuff to checkout, but not in the moment, or not in that context: news articles or blog posts discovered on the couch but relevant to work, some items I see in the shop but I want to check dimensions prior to buying, some cool idea to check out while at the cabin, etc. My day-to-day browsing experience relies heavily on that feature.

My issue is that one of the device (laptop in the cabin) is used only randomly, with sometimes weeks between it's turned on again. And after around 2 weeks, that entry disappears from the possible devices I can send the tab too. I do understand where it comes from, as it allows keeping a clean and meaningful list, I can live with that, no worries.

But is there a way to "keep alive" a device beyond these two weeks? At the minimum, something on the mozilla account's device list, like a "confirm still relevant" button next to the "sign out" one.

Thanks Dietmar

firefox setup 127.0.2.exe offline installer fails with message about "extraction failed" and popup "file is corrupt".

Windows explorer shows file properties and a signature for mozilla.

Is there a way to manually unpack the .exe? Someplace that issues are logged with more data (which file is corrupt?) There is a progress bar that flashes by part way, then a popup window with the file corrupt message.

(Trying to update to hopefully get rid of some crashes.)

Is there a hash for that .exe I could check?

Hi. i ran into a broken problem. sometimes when i bootup my pc and start the firefox, My windows crashes immediately. what shuld i do and how i can send the firefox log files to mozilla team?

I'm having issues with videos loading on ANY webiste, YouTube ect.... This started happening very recently out of the blue. Videos work fine on Edge. Additionally, I cannot run Firefox in troubleshooting mode? It crashes. I tried "refreshing" and reinstalling Firefox to no avail. I am using AdAware AV and AVG anti viruses if it matters, I have tired disabling both and loading FIrefox, no changes.

I Have Had It Installed On Microsoft Edge For About A Year With No Problems. I Had It Installed For About 3 Months On Firefox Then I Needed To Install It Again & I Get The Above Messages. Why Is It Doing This? There Hasn't Been Any Harm Done To My Computer. Also Firefox Needs A Customer Service Phone Number For People To Call & Explain Their Issues It's A Lot Quicker & Easier To Solve Your Problem.

YouTube all of a sudden started to slow down and only be able to load videos fast enough in 360p resolution, I tried watching YouTube on Microsoft edge and YouTube handled 1080p easily there, I have cleared the cash and made sure my Firefox and Windows are up to date and still the issue persists.

this only seams to occur on YouTube as amazon prime and speed test works without issues

Hi there! After a short elektricity blackout my PC was rebooted and I lost functionality of shortcuts on Mozilla default home page, turning on or off this shortcuts leads nowhere and just move search bar.

I have set Firefox to not automatically restore the previous session on launch. That is, "Open previous windows and tabs" is unchecked in the Startupsettings.

Most of the time it does not do so, however the previous session will get erroneously auto-restored in the folowing circumstances.

Open a few tabs in a normal Firefox window. Fully quit Firefox (via, for example, pressing ctrl+shift+Q). Open a private window first. Open a normal window second.

What should happen is that the new normal window contains just a single new tab. What actually happens is that the tabs that were open in the previous session get auto-restored in this normal window.

To sum up, there is no auto-session restore if Firefox is launched with a normal window first. There is auto-session restore if Firefox is launched with a private window first, and then a normal window is opened second.

Is this a known issue, and are there any known fixes to prevent the auto-session restore in the latter case also?

I've added https://x.com as an exception site but it is still blocked.

This is outright censorship which is something fascists do.

Tell me how to fix your browser so I may access x.com again or I stop using Firefox forever.

Problem: Persistent 150 KB of Cached Web Content For several years, I have gone to “Settings” / “Privacy & Security” / “Cookies and Site Data,” clicked the Clear Data…” button, checked both “Cookies and Site Data,” and “Cached Web Content,” and clicked “Clear”, and consistently gotten BOTH “Cookies and Site Data,” and “Cached Web Content” down to “0” zero. Recently, I have been unable to “Cached Web Content” to go below “150 KB of disk space.”

         I have NOTHING listed in “Manage Cookies and Site Data” or “Exceptions -- Cookies and Site Data.”
         I have tried reinstalling, but the problem has persisted.
         On the assumption that this is malware problem, I have continued to use Mozzella VPN, but stopped using the program for browsing, etc.  Should I stop using it altogether until the problem is fixed?
         Can you tell me how to get rid of the last “150 KB” of “Cached Web Content”?

Just like title says, there's no download panel when opening a youtube video in a new tab. If i open it in the same tab, it'll show the download panel. How can i fix this?

When trying to load a PFX certificate into the latest version of Firefox on a new Windows 11 computer, the certificate will load just fine but Firefox will not offer prompts for things such as mark the key as exportable or enable strong private key protection. Tried the certificates in chrome and they work just fine.

This causes strong private key protection to be enabled by default and Firefox prompts for the security certificate as it loads each stage of the login screen. You have to select the certificate at least six times before you can get to a screen where you can enter your password for the site, and then you constantly have to select the certificate for every function of the web site thereafter.

Any work around for this?

This is getting frustrating beyond belief. Buying things online is one the the basic activities anyone does using a browser these days, yet I am increasingly finding myself unable to do so.

It's a particular concern because, like many others, I am disabled and depend on the internet for the delivery of essential goods and services.

This problem for me began a few years ago with the Cashflows payment service that many retailers use. The card details entry page would never load up and consequently no payment could be attempted, nevermind passing through the security checks after this. Earlier this year or so, Firefox updated itself and seemingly fixed the problem.

Today, I again have problems with Firefox and Cashflows-enabled websites. I also have problems with VivaWallet-enabled sites now too, and one other that I presently forget the name of. Possibly also Apple's website, but I'm not too sure about this. Taking the browser right down to base settings with no extensions etc, a fresh clean install even, does nothing to resolve it.

The workaround seems to be use a Chrome-based browser instead, undermining the privacy and security advantages of Firefox, although this doesn't always work in all cases. I also find this less accessible as a disabled user, not that Firefox doesn't still have a long way to go towards accessibility - it certainly does, especially since it dispensed with the Nuance extension for Dragon.

Is Firefox intending to shoot itself in the proverbial foot? Because I don't think it will have much of a future if it can't at least get this bit right, for all the security and privacy advantages it cares to boast about.

It's an infuriating and distressing issue. As I encounter more payment issues, I begin to wonder how much more my world could close in on me. Imagine if all the other browsers started behaving this way too? It's a scary thought.

Please, Firefox, make this issue the priority it deserves to be. You can have all the security and privacy bells you like, but a browser that is otherwise dysfunctional is no good to anyone.