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I first noticed this issue on "Zen Browser" which is based on firefox source code, but some time after i re-installed Firefox and noticed the issue was on Firefox, like, literally the same lag that happened on Zen was happening on Firefox. I tried deleting the .mozilla(.zen for Zen) and still nothing. i did noticed some things:

- When i start Firefox on safe mode, the lag doesn't happen
- On my brother user on the PC, the lag simply didn't happen
- When the lag is happening, the disk reading goes REALLY high: 

I'll put a screenshot of the disk reading usage, even if it's on Zen executable, remember that the same issue is also happening on Firefox (and was where i noticed the disk usage thing)

Hi, the other day I upgraded from Windows 10 to Windows 11. Long story short, I had to reinstall Windows 11 and all my apps, including Firefox. My visited links no longer change color. I tried the Settings / Language & Appearance / Manage Colors and nothing works. I did notice that if I click on a link, it changes color for a fraction of a second then reverts back. On a similar note, I use NoScript. I've noticed it looks different. Maybe a background grid. And Privacy Badger is missing the oval slider boxes and the colored selection tab has no color. I'm guessing this is all related somehow.

Dear Sirs,

For at least the last two weeks, I have experienced a lot of trouble working with Mozilla Firefox. Just reading my emails is an arduous task.

It crashes, I lose internet connection, it does not "respond," etc., and Symantec Norton 360 cannot find out WHY! I have deleted Firefox and reinstalled it, and it is still unreliable.

Before I have to resort to using another browser, can YOU tell me what is going on. I have a Dell desktop, using Windows 10 Pro (obtained in 2018). Firefox is my default browser. I also have Google Chrome installed.

Please help!

Sincerely yours,

Victoria-Ann Bonanni vnatick@aol.com

Firefox on MacOS in full screen mode makes the black offset between the screen edge and the Firefox window after logging in after MacOS is locked. It fixes itself when you exit the full screen and enter it again.

How to reproduce?

• Open Firefox and enter the full screen mode
• Close your MacBook and wait until it prompts you for your password or touch id
• The Firefox window has black offset between screen edge and the Firefox window, that was not present before
• Exit the full screen and get into it again, and the offset is gone

Been using Firefox since the 90s and been on Mac since 2000s. This problem has been happening for about a year, throughout three macbooks (my old one, a temp one, and my new one) and multiple Firefox updates. I'm always updated and always clear cookies daily.

The failure to move bookmarks I can overcome by rebooting Firefox with a Forced Quit. If I only have to do this every few weeks, then no biggy reinserting all my passwords for all the different sites I use (and no, I don't want to use password managers, I don't trust them)

Today it happened within hours of Force Quitting Firefox, this is too much!!!

The only reason I didn't report this problem earlier is I simply expected an eventual newer version of Firefox to fix this bug.

Firefox 133.0

Normal behaviour: click-drag bookmark within bookmark menu pull-down to position where I want bookmark Failure behaviour: click-drag fails to move bookmark, until I reboot Firefox, then it works again

Recently I have been unable to sign in on several different sites, but have had no problem on others. This is a new computer with Windows 11, and I set it up about a week ago. When I tried to purchase a You Tube TV subscription, the purchase locked up. I tired it with Chrome and no problem. When I tried to log into my credit card account with Chase, I got an error message suggesting I try later or use another browser. Again Chrome worked. Then I tried to log into Aflac and got a message saying the site wasn't redirecting properly. Again Chrome worked. Also Firefox worked for Aflac on an older computer.

I don't want to use Chrome. Can anyone help? Andy

For quite some time (months), the Alarm.com web page has not worked properly. I get the message "Oops...Something went wrong.

Don't worry your system is fine; it's just an internet thing."

Refresh does NOT solve the problem. Today I resorted to using Edge, and all worked well. It's clearly a Firefox problem. Can you tell me what's going on? Is there a fix? I'm disappointed that Firefox can't deal with a web page.

For some reason, I am getting message that the Certificate for server is not valid (etc.). I can not get or send my emails as of this morning. Is there something I can do to resolve this issue?

Google maps does not work even tho both the browser and gmaps site have location access and location is turned on . The problem is with firefox for android (stable version 133) . It has been like this for sometime i thought I'd just wait for it to fix itself but that's obviously not happening . Infinite loading or location not detected error . Have tried running with all protections and extension off . Do any of you have this issue ? Is there a way to fix it ? is the issue already acknowledged and worked on ?

Microsoft recently decided to update Firefox, since when I have found it unusable, particularly where accessing my webmail (on Vox) is concerned. I tried going back to an earlier installation of Firefox and reinstalling that, but still have no luck. Please tell me (although not by email, obviously) how I may access my emails. Telephonic communication is difficult because of weak or often absent signal, but people seem able to reach me on WhatsApp - same number: [edited phone# from public support forum]

Hello!

Switching between tabs used to be instant. Ever since updating to v133, it takes over a second (both through the Ctrl-Tab shortcut and through clicking on another tab in the tab bar), which is really really bothering me.

The tab bar has also started taking over a second to react visually when I hover over it with the mouse, even with thumbnail previews disabled. I have no idea what's causing this. Please help.

Performance profile here: https://share.firefox.dev/4gpjqZA

CardDav is supported by TB now. I want to go away from the CardBook extension to native TB-CardDav. But: From 3 selected cardDAV-Addressbooks, only two synced and showed all contacts (150 and 700). The third (with 1300 contacts) will not show any contacts in TB. The address book is there, and contains the contacts. The address book did sync prior to the TB128-update with the CardBook TB-extension and does synch with other cardDAV apps like Davx5 on Android. Are there any limits for number of address books or number of contacts per address books in TB? Any other thoughts?

I cannot enter any text when I load firefox. The cursor just sits there blinking. Finally firefox unlocks and I can type. Like this questionaire I'm typing. I have been on this page for almost ten minutes trying to fill out this form. Now I can type something. If I stop, Firefox may lock up again. What is happening?

I have two CalDAV calendars on my Synology Drive. Whenever the Synology drive is doing other tasks and Thunderbird is symultaneously trying to update the calendars, the following will consistently occur:

1) A small error next to the calendar will appear stating the calendar is momentarily unavailable. 2) If the Synology continues to be busy, the calendar will automatically disable and a button will appear next to the calendar to enable it. All appointments and tasks are removed from the calendar and task windows/tabs.

If step 2 occurs, the calendar will not re-enable automatically. It will remain disabled until the user manually re-enables it. This risks tasks and appointments being missed.

I regard this as a bug. A serious one. Is there a solution that I have not yet found despite looking everywhere?

'Linked In' technical support are telling me that I am unable to see certain pages on their system most likely because my Firefox Browser (which is fully up to date) is using DNS. They said to remove DNS. Is this wise advice and if so how do I do that and what difference will it make to my day to day use of firefox?