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When scrolling on iOS, websites are jumping up and down whenever address bar appears. On some websites it isn’t a big issue (cnn.com), on some it is really annoying (Audi.pl). It makes it really hard to browse. See the video:

https://youtube.com/shorts/jtS5kcnHP0g?si=3cI7aYHsk8XzKCxm

I have an e-mail in my TB in-box. The mail contains a hyperlink to Facebook. When I click on the hyperlink, I get the message copied above in the Subject of this problem. In almost all cases, if I re-click on the icon in the e-mail, the re-click takes me to the desired URL in Firefox. My Thunderbird is 128.11.1esr (64-bit). Why is the first click producing the error message? Would there be anything in the TB Error Console?

i'm getting a message saying: :

The bookmark and history sysem will not be functional because one of Firefox's files is in use by another application. Some security software can cause this problem.

Can somebody tell me how to fix it as I've no idea.

Experiencing an issue on the Facebook website where it's skipping/jumping ... Anyone seeing this? I did a screen recording of it.

link text

I am having several issues with Thunderbird. First is random high CPU usage at times where the whole computer runs slow and Task Manager says Thunderbird is using high CPU and that Thunderbird is not responding. This will last 15 to 30 seconds.

The other issues are with calendar. It used to be in calendar that when finding events that a repeating event would only show up once in the found list. Now, repeating events show up as multiple individual events in the find list making searching difficult. The other calendar issue is when requesting "find events" it will take 30 seconds for the search box to unlock and allow characters to be entered into the search box. Up to that time Thunderbird is frozen. Any suggestions?

I am on Version 128.6.0esr

Windows 10

Thanks, Dennis

Today every time I open my e-mail account I get the following error message: "The folder Inbox on (my zoominternet e-mail address) could not be compacted because writing to folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again." Never seen this error message before today. What should I do to get rid of it or correct the problem? I am receiving e-mails, but I haven't tried to send any. Thank you.

Problems (all intermittent)(not on Chrome): >things are really slow >images don't show >Mozilla-Firefox freezes >the screen goes black and comes back to normal in 1 or 2 seconds > " " " " " I have to log back onto my computer > " " " " " " " " " " " the site >everything already moving keep on moving but nothing responds to my cursor >Zoom and Kaiser Permanente never work well >other sites sometimes don't work well and sometimes do work well

I use Mozilla Firefox with Duckduckgo. This is very much my preferred setting...just not the way it's working now. Ann Marie

I've loved Firefox for years but can no longer use it because I have been unable to resolve this issue. All was well, an update was done, and bingo, I got this message. I don't know how to fix it. I removed Firefox from my desktop and re-installed. Same problem.

"The bookmarks and history system will not be functional because one of Firefox's files is in use by another application. Some security software can cause this problem."

I like Mozilla Firefox as a browser and it was working fine until an update two days ago. I normally due the updates primarily for security reasons not performance reasons. I did the update and Firefox will not connect to the internet at all. Since the update, Mozilla crashes when I try to connect with any page on the internet. The crashes are immediate; I cannot connect to any website at all. As anyone else had this problem recently and were you able to solve it? Unfortunately one cannot contact Mozilla directly for direct help with major problems such as this. I appreciate any ones help on this. It appears to me this latest update is the problem so past solutions may not work but I will and am trying them.

Today: DevTools crashed many times, and I’m facing unusual issues. I cannot call through Messenger and cannot connect for video calls. Also, DevTools is not working, even though Firefox Developer Edition is quite good and healthy. Even Firefox is not working well. Please fix this issue quickly.

OLD ISSUE

My Firefox is using a lot of data; I don’t know why.

I am not using Firefox, and it is not running in the background, yet it is always using the internet. So what do I need to do in this situation? I tried to stop the internet connection using outbound rules, but it did not work. It is still using the internet. What is the reason my browser has high data usage? I have high data usage; in fact, in the past 12 days, we've used 30+ GB of data.

Win11 Firefox 138.04 It appears some of the shortcuts on the Newtab page are preloading somehow.

Where are these coming from? Sidebar is off. I have all preloading off, all suggestions of every sort off, any predictive anything off.

I am not experiencing this on my win10 machine.

How do I stop this?

I am using my University of Florida email (https://www.mail.ufl.edu/), IMAP. When I turn on Thunderbird and I send messages, everything is good for a few hours. After that, when I send an email I get this error every time:

Your message was sent but a copy was not placed in your sent folder (Sent) due to network or file access errors. You can retry or save the message locally to Local Folders/Sent-XXXX@XXX.

How can this be solved? Only way to fix is closing Thunderbird or rebooting, then problem represents itself. But then I lose the sent emails.

Note: could the problem be that by Default Thunderbird saves emails in a different sent folder? Which is not ideal, because when I send from my phone or from the web things go in a different folder than when i send from Thunderbird. Should I tick off "others"? in the attached pic? How should I consolidate the 2 "sent" folder into one? Should I manually copy them? Or after I select "others", they consolidate themself. I dont wanna do a mess, can you please provide step by step instructions.

I have numerous Co's and people trying to sell me stuff that I do not want. They continue to send these emails even after I have unsubscribed numerous times. I was able to block some awhile back, but have forgotten how to do it or that feature is no longer available. Help appreciated for sure. Thank you.

Since recently 1~2 version, my Firefox keeps consume large amount of memory and release it repeatedly

Even I restart Firefox and do nothing, it will start doing this again

I use about:processes and about:memory to capture this seems the main process's "tab.query" causing this, please check

PS: sometime it will consume till system max (64GB) and cause my OS out of memory. PS2: that wave-like memory usage is cause by Firefox

It started with Amazon/Kindle. Couldn't buy books through the Amazon App so I had a workaround which put me into the full site amazon.co.uk. Not anymore. Firefox redirects me into the App regardless. I can only get into the full site now by uninstalling Amazon Shopping. That's silly. Now, Firefox is blocking legitimate site links from my emails, like Greenpeace, for example. Variations on "site blocked" messages. Switching to DuckDuckGo avoids all these issues. I've been with Firefox for decades and would rather stick with you - I have two VPN accounts (and 12 machines) with you as well. Jon Lisle-Summers, [email address]

I'm using the vertical tabs feature. I also tried enabling the "Expand sidebar on hover" option, which minimizes the side bar, and only expands it when you hover on it.

Issue: I have a lot of open tabs, and I'm usually working with the ones at the bottom of the list. When the bar minimizes the scroll position resets back to the beginning. So, every time I want to select a tab, I have to scroll back down, which makes this feature very hard to use.

Expected behavior: After the vertical bar minimizes, and I hover again, it should keep the scroll position.

Have always set up accounts so they download all messages to hard drive.

Since 3/27/25, it is as if it never officially logs the downloads as downloaded, so it downloads each day as if it hasn't been done since 3/27/25, marking all of the messages since then as new.

File is very large so want to try fixing without deleting entire file.

Tried the 'repair this folder' but that didn't work.

Having trouble identifying the exact folder on the hard drive to delete since there are several different accounts in the Thunderbird setup.

Issue Description • Problem Overview: When using the Network panel in the Firefox browser, attempting to use the "Copy as cURL" feature results in the generated cURL command containing an extra ^ character, causing the command to fail to execute properly. Now, it is necessary to submit this bug to the Firefox official team.

Detailed Steps 1. Open the Firefox browser and navigate to the developer tools (can be opened by pressing F12 or right-clicking and selecting "Inspect"). 2. Switch to the "Network" panel and load a webpage to capture network requests. 3. Select a request, right-click and choose the "Copy as cURL" option. 4. Paste the copied cURL command into a terminal or command-line tool, and you will notice that the command contains additional ^ characters. 5. Execute the cURL command, and you will find that due to the presence of ^ characters, the command fails to run properly.

Expected Result • The generated cURL command should not contain any additional ^ characters to be able to execute correctly in a terminal or command-line tool. Actual Result • The generated cURL command contains additional ^ characters, causing the command to fail to execute properly. Submit Content • Issue Title: The command generated by the "Copy as cURL" feature in the Network panel contains extra ^ characters • Issue Description: When using the "Copy as cURL" feature in the Network panel with the Firefox browser, it was found that the generated cURL command contains extra ^ characters, causing the command to fail to execute properly. Please refer to the detailed steps and screenshots below.

• Reproduction Steps: 1. Open Firefox browser and go to the developer tools. 2. Switch to the "Network" panel, load a webpage to capture network requests. 3. Select a request, right-click and choose the "Copy as cURL" option. 4. Paste the copied cURL command into a terminal or command-line tool, and you will notice that the command contains additional ^ characters. 5. Running this cURL command will reveal that it fails to execute properly due to the presence of the ^ character. • Expected result: The generated cURL command should not contain any additional ^ characters, allowing it to be executed correctly in a terminal or command-line tool. • Actual result: The generated cURL command includes additional ^ characters, causing it to fail to execute properly. • Additional information: Firefox Browser 141.0(aarch64), MacOS 15.3.2(24D81) MacPro M3

curl 'https://milkyway.cngb.org/milkyway/api/data/?filters=[%7B%22field%22:%22delete%22,%22rule%22:%22exact%22,%22value%22:false,%22operator%22:%22and%22%7D]^&pagination=%7B%22page%22:1,%22per_page%22:10%7D' \

 --globoff \
 --compressed \
 -H 'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:141.0) Gecko/20100101 Firefox/141.0' \
 -H 'Accept: application/json, text/plain, */*' \
 -H 'Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2' \
 -H 'Accept-Encoding: gzip, deflate, br, zstd' \
 -H 'X-Requested-With: XMLHttpRequest' \
 -H 'X-CSRFTOKEN: jdL0d4uDC4IgjdWcdkj1sykkr4Pm8C7FoFhESYK1M658FVFIjT2g8D2wVNvHMc7o' \
 -H 'Connection: keep-alive' \
 -H 'Referer: https://milkyway.cngb.org/milkyway/backstage/assets/data_assets' \
 -H 'Cookie: dc_lang=zh-hans; _ga=GA1.2.116445420.1751513690; _ga_MB7C521GCN=GS2.2.s1752542198$o14$g1$t1752542198$j60$l0$h0; dc_csrftoken=jdL0d4uDC4IgjdWcdkj1sykkr4Pm8C7FoFhESYK1M658FVFIjT2g8D2wVNvHMc7o; db_session=er1j3oh2ifxk37qh3p64speh7q45t0ni' \
 -H 'Sec-Fetch-Dest: empty' \
 -H 'Sec-Fetch-Mode: cors' \
 -H 'Sec-Fetch-Site: same-origin'