[Nightly] Stutters / lags / CPU usage high since about a week?

Hello, I'm on Firefox Nightly 152.0a1 running on a freshly installed new Windows 11 version. I've used Firefox exclusively for my whole life and everything has always bee… (czytaj dalej)

Hello, I'm on Firefox Nightly 152.0a1 running on a freshly installed new Windows 11 version. I've used Firefox exclusively for my whole life and everything has always been smooth until a few days ago. Firefox started (and continues) to freeze for a second or two pretty regularly, each time I use the search bar for example, open a new tab, while a page is loading (which is very slow at the moment) but also scrolling on a page for example. During the freezes, the temperature of my CPU also increase by approximately 20°C. CPU usage in task manager shows that it is quite high, 10x higher than Edge that I opened for comparison only : https://i.imgur.com/enuMMZl.png.

I have sought the internet for advice but nothing changed this behaviour. I updated my computer through Windows Update, my drivers through Driver Booster, I disabled hardware acceleration on Firefox, I removes all AI components with zoicware/RemoveWindowsAI on GitHub, I changed dom.ipc.processPriorityManager.backgroundUsesEcoQoS on about:config to false but nothing cured the problems.

I'm out of solutions and I don't know if I should be waiting for another Nightly build (usually there's about 1-2 a day but 152.0a1 is sticking since a few days and there isn't any update available since, seemingly), if there's others energy economy parameters I could play with on Windows 11 that I don't know about or if something else is in the way. Any help very appreciated, thanks!

Open 2

Profiles reset after every update

During the last week or so I have encountered the issue that one or more of my Firefox profiles keep resetting after every update. I noticed there's couple of threads wit… (czytaj dalej)

During the last week or so I have encountered the issue that one or more of my Firefox profiles keep resetting after every update.

I noticed there's couple of threads with similar issues already but the generic profile restore instructions are not helping at all since it seems that Firefox is actually wiping the default profile on every update.

I'm running Firefox 150.0.1 for Arch on CachyOS.

After an update when I click on my default profile in the selector, I get greeted with a completely fresh Firefox install. There's no extensions, it's not logged in to my account and no browser history. The edit profile button shows a pop-up "Firefox is already running but not responding--".

If I try to switch profile via the Account button on top, I get another pop-up stating "Your Firefox profile cannot be loaded. It may be missing or inaccessible."

I do not have the clean session after closing Firefox set on.


I followed the instructions to see if I can restore or recover my profiles.

  • I can find three profile directories under $HOME/.cache/mozilla/firefox
  • In $HOME/.config/mozilla/firefox there are matching linked directories for the profiles
  • The broken profiles seem to have broken link, ie. no target in /run/user/1000/psd/<profile> is not found

Searching for the profile that should be under /psd/ doesn't seem to yield any results, meaning it's been wiped after the update.

Open 1

The certificate has expired :]

Zachowaj ostrożność. Coś tu nie gra. Firefox wykrył potencjalnie poważny problem bezpieczeństwa na witrynie ohttp-gateway-merino.services.mozilla.com. Ktoś podszywający s… (czytaj dalej)

Zachowaj ostrożność. Coś tu nie gra.

Firefox wykrył potencjalnie poważny problem bezpieczeństwa na witrynie ohttp-gateway-merino.services.mozilla.com. Ktoś podszywający się pod nią może próbować ukraść dane karty płatniczej, hasła, adresy e-mail lub coś innego.

Witryna „ohttp-gateway-merino.services.mozilla.com” określa poprzez HSTS (HTTP Strict Transport Security), że Firefox ma się z nią łączyć jedynie w sposób zabezpieczony. Dodanie wyjątku w celu odwiedzenia tej witryny jest niemożliwe.

Open

Can't browse Home Depot site. Was able to do this prior to about 1 month. Desktop, Windows 7 (!)

When I click on any product at Home Depot site, I always get 'error page -- please refresh page'. Did not previously have any problems at that site. I'm running Windows … (czytaj dalej)

When I click on any product at Home Depot site, I always get 'error page -- please refresh page'. Did not previously have any problems at that site. I'm running Windows 7 (sorry!) on desktop.

Open

Since last April 2026 update Prime Video no longer displaying thumbnails of shows/movies

Since a few days (last week of April), when I go to Amazon Prime Video, once I log in, the thumbnail no longer display (see attached screenshot). However, when I arrive … (czytaj dalej)

Since a few days (last week of April), when I go to Amazon Prime Video, once I log in, the thumbnail no longer display (see attached screenshot). However, when I arrive on Prime, before logging in, the thumbnails are there (but they might be actual images and not thumbnails). As soon as I log in, all thumbnails disappear and all I have is a text (might be the Alt-Text option for images).

It was working fine over the past weekend. I had a Firefox update at the beginning of the week. I think it somehow messed up my settings.

I tried several things: - clear cash (it clears everything when I close Firefox) - used different privacy settings (was at Strick) - added www.primevideo.com as exception in the privacy settings - was always use private window - had not installed any extension nor plugins - DMR was ON - most of every options were set to OFF or disabled

I tried to reinstall it through Snap Ubuntu 24.04 and it worked but the next day, the problem was back.

I installed Crome and out of the box, the thumbnails are there.

Open

Post FF 150 Breaks Synology DSM (7.3.x) Drag & Drop Uploads

Hey everyone! I just noticed that post FF's 150 update, I can no longer drag and drop folders into my DSM window. This has been a non issue for over 6 years and all of a … (czytaj dalej)

Hey everyone!

I just noticed that post FF's 150 update, I can no longer drag and drop folders into my DSM window. This has been a non issue for over 6 years and all of a sudden, poof. I did find that you can still to this on Safari, but long term, Mozilla and Synology need to address this. There's already a post on the Synology fourms about it and I've emailed their Support Team to see what they have to day. Posting this here in case anyone has found a workaround in the Config settings pane.

Thanks! --Brian

Open 1

Unable to restore bookmarks in Linux Mint 22

Dell desktop running Mint Mate 22. Bookmarks missing about 50% of bootups. Saved bookmarks to both HTML and JSON during an occasion they did appear, when they next were… (czytaj dalej)

Dell desktop running Mint Mate 22. Bookmarks missing about 50% of bootups. Saved bookmarks to both HTML and JSON during an occasion they did appear, when they next were missing attempted to restore them via Library pop-up (Manage bookmarks). I could not determine a path to direct the system to either locally saved file. In Library, selected Restore, which then asks me to choose file, but none of the data fields accepted or acted upon input. re-installed Firefox but same result. Then clicked on the saved HTML file, multiple screens flashed on the display, with multiple items in the tray. The final result was the bookmarks were all displayed as expected, but since the problem has been inconsistent, unknown whether they will display on future bootups.

Wish to have guidance on using the Library pop-up to restore saved bookmarks when they are missing. Perhaps some knowledgeable user could post a step-by-step through the restore process.

Open 17 1 27

"Save As" portal makes Windows' context menu text invisible

Hi! Really weird issue I've noticed with my Firefox-based browsers. Essentially, whenever I am within the "Save As" feature of my browser, I am unable to realistically d… (czytaj dalej)

Hi!

Really weird issue I've noticed with my Firefox-based browsers.

Essentially, whenever I am within the "Save As" feature of my browser, I am unable to realistically do anything that requires the context menu (e.g. creating a folder, renaming). I can still do things, but each entry in the context menu has no text.

I am on Windows 11, and am using the most up-to-date verison of both Firefox-based browsers. I do have a lot of customisation software and/or registry changes, but this issue has started to show up after I've spent a while with these changes already implemented. I don't think it's the problem as I have tested without each of these, but I thought worth mentioning if anyone knows of any potential conflicts (and to clear up any confusion from the screenshots).

An example of the above that I thought would affect this is a registry fix to enable the "show more options" setting on the context menu to be selected by default whenever I right click (steps followed here: https://www.howtogeek.com/759449/how-to-get-full-context-menus-in-windows-11s-file-explorer/). I've just tested by reversing this change and issue persists, and like I mentioned issue did not occur previously when this fix had already been applied. I hope that's not redundant information, I'm just trying to give as much info as possible!

I typically use Floorp, but when I noticed this issue I have tried and verified that this issue also happens on regular old Firefox.

Other browsers I have installed and verified this issue is NOT present on:

  • Microsoft Edge
  • Chrome
  • Pale Moon

The issue only seems to happen on FireFox and Floorp.

I have attached some images of what it is meant to look like ("expected_context_menu.png") and what it looks like on FireFox based browsers ("real_context_menu01.png").

Initially I though the menu was just useless, but it does appear I can actually use this menu without text as normal. I tested this by using the second-from-bottom option, and then the top-most option that marks the option for "New Folder" on the working context menu. I was able to create a folder as expected doing this ("real_context_menu02.png" and "real_context_menu03.png"), which suggests that it's just an issue with the text displaying.

Anyone have any ideas? Of course, I can provide any info about the OS customisation steps I've taken if needed!

I'd appreciate any help!

I've never uploaded here before so in case the images don't show the image name, they are uploaded in the order: "real_context_menu01.png" "real_context_menu02.png" "real_context_menu03.png" "expected_context_menu.png"

Open

copying a profile brings up a profile attached to my old firefox login

Help! I updated my account to a new email months ago. I have been trying to set up a new different profile. Copying a profile or trying to add a profile adds the newly m… (czytaj dalej)

Help! I updated my account to a new email months ago. I have been trying to set up a new different profile. Copying a profile or trying to add a profile adds the newly made profile to my old email address instead of my new email address. In the new profiles created, I am unable to login to my new email and password.

Open

Latest update broke my program in Firefox and then in Firefox for Developers.

Some faces of a 3d box are now invisible. The HTML is correct and the Inspector shows the faces in pale blue correctly. This worked for many months before the latest upda… (czytaj dalej)

Some faces of a 3d box are now invisible. The HTML is correct and the Inspector shows the faces in pale blue correctly. This worked for many months before the latest update to Firefox. I tried it in Safari and it worked, but I am used to Firefox. I tried Firefox for Developers and it worked until the update today, 5/1/26. Please help.

Open

INstallation of Mozilla VPN keeps saying failed

Hi I had to uninstall my VPN because it was frozen, and I couldn't even switch it on, even when I restarted my computer. This has happened before, so I had it uninstall… (czytaj dalej)

Hi

I had to uninstall my VPN because it was frozen, and I couldn't even switch it on, even when I restarted my computer.

This has happened before, so I had it uninstalled & then downloaded it again.

You will see proof, by the screenshot I have attached to this email, please advise manufacturer.

My OS has the latest updates MacOS Monterey 12. 7. 6

Kind Regards

Joe

Open 2 3

Since the latest Firefox update, I have 2 websites that will not load

Since the latest Firefox update, I cannot load my primary banking account, and one of my work websites won't load. I can access both of these sites on other browsers. … (czytaj dalej)

Since the latest Firefox update, I cannot load my primary banking account, and one of my work websites won't load. I can access both of these sites on other browsers.

Open 2

Since latest update can't access Bluesky (claims no internet) on PC, but allows it in private browsing.

I access Bluesky (bsky.app) for business on my PC. Since the last update, I've been unable to access Bluesky from my regular Firefox browser. I can using other browsers, … (czytaj dalej)

I access Bluesky (bsky.app) for business on my PC. Since the last update, I've been unable to access Bluesky from my regular Firefox browser. I can using other browsers, the mobile app, and, oddly, in Firefox private browsing. I've cleared my browser history, cookies, etc. I restarted the computer. I logged out of Bluesky (and now can't log back on the regular PC account because it claims I'm not connected to the internet). Yet, I had no trouble logging in using private browsing.

I've looked through settings, etc. and can't figure out what could be limiting my ability to access this website.

Open 1