"Restore session" restored tabs from 6 months ago and deleted all recent history since that point, assuming it to be an update issue

Firefox prompted me to update, I hit download, my entire PC froze, I restarted the computer, when I opened firefox again and hit "restore session" it restored a session t… (閱讀更多)

Firefox prompted me to update, I hit download, my entire PC froze, I restarted the computer, when I opened firefox again and hit "restore session" it restored a session that I had opened months ago. When I checked my history, everything after that older session had been deleted. All of my history from the past few months has been deleted. I tried a few different solutions from trying to research the problem, nothing so far has worked. The only thing I have found is a session restore error saying "could not decompress file", but I could not find the file it was attempting to decompress. This is the error message I found.

1785894397652 SessionStore ERROR NotReadableError when reading session file: recovery: NotReadableError: Could not read `C:\Users\ansen\AppData\Roaming\Mozilla\Firefox\Profiles\xpnhovd6.default-release\sessionstore-backups\recovery.jsonlz4': could not decompress file: invalid LZ4 header: wrong magic number: `00 00 00 00 00 00 00 00 00 00 00 00' (NS_ERROR_FILE_CORRUPTED) No traceback available 1785894397756 SessionStore ERROR NotReadableError when reading session file: recoveryBackup: NotReadableError: Could not read `C:\Users\ansen\AppData\Roaming\Mozilla\Firefox\Profiles\xpnhovd6.default-release\sessionstore-backups\recovery.baklz4': could not decompress file: invalid LZ4 header: wrong magic number: `00 00 00 00 00 00 00 00 00 00 00 00' (NS_ERROR_FILE_CORRUPTED) No traceback available

Any help is greatly appreciated. I'm one of those people that tends to have way too many tabs open at once due to poor memory, and losing months of tabs and progress is a huge setback. I'm very desperate to get the history and tabs back.

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OS scroll bar visibility setting not read on page load in v153

For some scrollables, v153 doesn't respect the Mac OS setting to hide scrollbars unless scrolling on page load. If that OS setting is adjusted after the page is loaded, t… (閱讀更多)

For some scrollables, v153 doesn't respect the Mac OS setting to hide scrollbars unless scrolling on page load. If that OS setting is adjusted after the page is loaded, then the page respects it again until refresh, so there's apparently some sort of race condition going on where it's not reading the setting in time before the page loads?

This is not a problem in v152. I downgraded back to v152 and it's working again.

Solved 8

Use system print preview instead of Firefox

We recently had an update on our printer drivers and somehow this has swapped settings from the previous system print dialogue to "Firefox - Print". The Firefox print dia… (閱讀更多)

We recently had an update on our printer drivers and somehow this has swapped settings from the previous system print dialogue to "Firefox - Print". The Firefox print dialogue does not have print preview and I need to be able to see a print preview. I've noticed that this was an issue in the past and people have solved it by going into about:config and setting print.tab_modal.enabled to false, but this hasn't worked for me. I am asking this question because if I can't find a solution I will have to switch to Chrome so I can see a print preview and I would rather not. If there is another way to force the system print dialogue instead of Firefox, please let me know.

Solved 3

Unable to change payment method (VPN)

Hi, last year I deleted my paypal account. Before that I deleted all entries and connections to abonnements in paypal. A few days ago i received an e-mail from Mozilla t… (閱讀更多)

Hi,

last year I deleted my paypal account. Before that I deleted all entries and connections to abonnements in paypal. A few days ago i received an e-mail from Mozilla that I should pay my VPN abonnement. I would like to do so, but after logging in, I was shown an error message: "Invalid payment information. There is a problem with your account. Manage payment method."

When I go to "Manage payment methods," no options for other payment methods appear, only a PayPal link. What should I do now?

Thank you for your help!

Solved 3

How can I stop the underlining of URLs in Firefoxby using text-decoration in my pages?

Until a few months ago, I was able to turn off the underlining of URLs in web pages that I create. But within the last few months, all URLs appear as underlined, even in… (閱讀更多)

Until a few months ago, I was able to turn off the underlining of URLs in web pages that I create. But within the last few months, all URLs appear as underlined, even in documents where they had NOT been underlined a few months ago. I am using the text-decoration setting to control this aspect. Look at page https://www.w3schools.com/CSS/tryit.asp?filename=trycss_link2 in the Edge browser, and see the "This link changes text-decoration" change between underlined and not as the cursor is moved on and off of that sentence in the middle box. Now look at the above page in latest Firefox. Moving the cursor on and off of the "This link changes text-decoration" sentence causes NO change to that sentence -- it always is underlined.

I refer to the w3schools.com website when I wish to learn about a new-to-me feature, and I have found their site to be accurate in the past.

Solved 3

Constant crashes in Linux

I have used Firefox since version 1.5 and have loved it and the community since. However, since finally scrapping Windows and switching completely to linux, Firefox has b… (閱讀更多)

I have used Firefox since version 1.5 and have loved it and the community since. However, since finally scrapping Windows and switching completely to linux, Firefox has been frequently troublesome with random crashes. The crashes occur on any website I may be on and for seemingly no reason. It happens when I'm in the middle of browsing a page, just opened a new tab, or even when Firefox is simply open and I'm active on another open application.

Environment is as follows:

OS: Zorin OS 18 (Latest patches) (Based on Ubuntu) Mobo: Asus Crosshair VI Hero (Latest available BIOS) CPU: Ryzen 9 5900XT GPU: EVGA GeForce RTX 3080 XC Gaming (10GB) Ram: 8GBx4 G.Skill TridentZ RGB DDR4 (3200) Sys Drive: Samsung 970Evo M.2 Nvme 500GB

Firefox is installed via Flatpack through the built in app store in Zorin OS.

The crashes will sometimes be constant as well. Such as when it crashes, crash reporter comes up, then I click "Restart Firefox" and the second I see the window, it crashes again. This has been a constant problem though at random times ever since I switched back to Linux about 5 months ago.

Any help would be greatly appreciated. I don't want to have to change my primary browser from one that I am generally so happy with, and is also the browser that I recommend to everyone.

Solved 7

Unable to reorder tabs using a mouse

I am using the latest 155.0 build of Firefox on Windows Edition Windows 11 Pro Version 25H2 Installed on 21-08-2026 OS build 26200.9278 Experience Windows Feature Experi… (閱讀更多)

I am using the latest 155.0 build of Firefox on Windows

Edition Windows 11 Pro Version 25H2 Installed on 21-08-2026 OS build 26200.9278 Experience Windows Feature Experience Pack 1000.26100.360.0

Recently, probably around a few weeks ago, I have found that i am no longer able to reorder tabs using the mouse left click and drag to reorder.

The mouse is working fine and I am able to do the same reorder on the Chrome browser however it doesnt work on Firefox anymore.

The only way to reorder tabs is to use the popup menu and select Move Tab.

Kindly fix

Regards Sanjay

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Receiving two Ten Tabs to a single email address

I'm receiving two Ten Tabs to my single email address. If I unsubscribe from one it will also unsubscribe the other since both are sent to the one email. One email sender… (閱讀更多)

I'm receiving two Ten Tabs to my single email address. If I unsubscribe from one it will also unsubscribe the other since both are sent to the one email. One email sender is firefox_at_mail_mozilla_org_[alpha numeric omitted}@privaterelay.appleid.com, the other sender is firefox@mail.mozilla.org. Is the easiest solution to unsubscribe and then resubcribe?

Solved 2

Cannot delete history

Firefox does not delete history by using any of the recommended procedures. Clear recent does not work either. The only way I can delete history in by going to manage his… (閱讀更多)

Firefox does not delete history by using any of the recommended procedures. Clear recent does not work either. The only way I can delete history in by going to manage history and manually deleting.

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