Firefox Community Forum

Firefox is hindering the website of procore. What worked last month is not working this month and I am finding myself monthly trying to find a workaround to get sites to work properly.

Hi all, I'm using Firefox 140.0.4 (64-bit) on Debian Trixie and I'm getting a weird behavior with the auto-complete functionality of the address bar.

If I type the first character the address gets auto filled (see 20250711_First-character-auto-fill-working.png attachment), then if I type the second character the auto filled result disappears (see 20250711_Second-character-auto-fill-NOT-working.png).

I've tried any search option combination, but results doesn't change. At the moment I'm using for the address bar just "Browsing history" (see 20250711_Address-bar-settings.png).

The correct behavior would be, as in the past, that new characters confirming the address would leave things as they are. Do you have any suggestion on how to restore the original behavior?

Many thanks,

Raoul

Some time ago, I installed a TrustWallet extension on Mozilla through you and entered my TrustWallet password to log in, and unfortunately all my assets were stolen. Now what will you do for me?

Hi,

I am using firefox for a long time ans since few days no website is opening. It is not about the connection because other browsers and other devices are working . It is just turning and turning but never opens or refresh.

Any idea what could be?

Thx in advance

Hi,

Firefox version: 139.0.4 (64-bit) OS: Windows 11

I have been having issues where Firefox tab will just crash out for no reason it appears and it happens at random times and once the tab start to crash, and I restore it, it will crash again and again. The only way tog et out of the loop is to restart Firefox.

I have tried: Refreshing/Reset, Clearing Cache and History removing all themes, disabling extensions, disabling my anti virus. Turning off hardware acceleration didn't make any different.

I currently have 2 extensions enabled: uBlock Origin 1.64.0 and Bitwarden Password Manager 2025.5.0

In the about:Crashes I have reported them all and they seem to have the same type of reasons in the Raw data/Minidump which are: EXCEPTION_ACCESS_VIOLATION_WRITE EXCEPTION_ACCESS_VIOLATION_READ

Any help as to what to try next?

Gaz

128.13.0esr This is probably a huge long shot I know, because every forum etc on the internet has nothing that ever helps with this, but as it only happens in FF I thought it was worth a try.

Yesterday I changed my Privacy settings to 'delete cookies when FF is closed' and added a few exceptions. Then this Google Search reCaptcha thing started. Changed it back to what it was, basically the default setting there, but it was still happening. It only happens in FF [doesn't happen with Edge] and only on one pc, all other pc's and phones in the house are fine [all using the same network, router etc]. So I uninstalled FF altogether, reinstalled it...this thing was still happening regardless of what settings I use re cookies etc. If I actually complete the super annoying reCaptcha it goes away for about 1 or 2 searches, then comes back.

If I'm signed in to a Google account it doesn't happen.

I even did a fresh Windows install [which actually fixed this the other time this was happening about 6 months ago] but that didn't fix it this time. There is no malware, no VPN, no extensions that I haven't been using for years. Nothing that could ever possibly be considered 'bot-like' behaviour.

Thanks

Since updating to Firefox 141.0 (Win11), I've had issues with performance and on-screen behaviour of dynamic web pages/sites. The problems do not manifest on Chrome, or on a reinstalled version of Fx 140.0.4 on the same computer running at the same time (and with copy of original profile's data files, extensions etc.).

The manifesting problems:

• Screen pointer rapidly switching between standard arrow pointer, mouse with index finger (clickable link) and serifed-style insertion bar, even when positioned on a part of the page that is not a link or a text box. Video (MP4, <1MB) showing behaviour at https://imgur.com/a/absjTh4.
• Browser intermittently fails to respond to browser actions (mouse clicks, keyboard entry)
• Small increase in browser CPU usage

Problem is worse if general CPU usage is already high. (I run BOINC on 10 of 12 CPU cores; problem is not quite as bad if I reduce BOINC to 6 cores and isn't observed when BOINC is temporarily suspended from computing.) The problem happens on dynamic pages (e.g. gmail.com, boardgamearena.com/lobby) but doesn't seem to happen on static pages.

The fact that I can see the problem occurring on Fx 141 but have Fx 140.0.4 working fine at the same time on the same page, suggests that this is a Fx 141 issue. Regular malware scanner and an alternate found no issues.

Happy to do more diagnostic testing if it's helpful.

Myself and a colleague who both use Firefox on Mac are experiencing the exact same issues.

1. Table header cells don't show their text, unless we specify a font for the table

I tried to put an example of the HTML here but it was rendered as a table by this page. I'll add some images of the code instead to show it.

In Firefox the Header cells are not visible, but in Chrome the text appears correctly.

If we add CSS like...

<style> table { font-family: Arial, Helvetica, sans-serif; } </style>

...in the header then the missing text in the THs appears.

2. Other font issues

The Wave accessibility extension has text that doesn't appear and throw errors like this in the console...

downloadable font: rejected by sanitizer (font-family: "Open Sans" style:normal weight:400 stretch:100 src index:3) source: moz-extension://b86260c9-33f6-4529-b12f-a101d8607bd4/styles/open-sans-v17-latin-regular.woff

These only occur on Firefox on our Macs. Fine on PC and other browsers on the Macs.

We tried a whole series of tweaks to settings to try fix this.

I have tried resetting Firefox and doing a fresh install but nothing fixes either issue. Are these known issues with recent Firefox releases on Mac?

Hello! I saw that the Test day event had started. In Firefox Beta, I entered messaging-system-action.testday in about:config, put it on a string and set the value to testday as it said in the instructions. When I restarted Firefox, the welcome window did not appear and there was also no letter S next to the search as it should be. Please help!

Thanks for the answers!

Vexi

First the browser did not work. When extensions were disabled it worked. Now the 1 password extension does not work, only if I create a new profile in firefox. I do not want another profile, is there a solution? I also use Add blocker extension. Pages sometimes do not load at all.

It used to be that if I clicked a link, the link would open a page next to the tab where I started. Now it opens the page somewhere remote from the start page and I have to search up and down the tabs to find the associated pages. Why? What is the fix? in the image, there is a yellowish heart shaped tab then off to your right is another. These are closer together and can be MUCH further apart.

我的系统和firefox版本如图, 我的firefox配置 user_pref("browser.download.dir", "/home/thsea/dls"); user_pref("browser.download.folderList", 2); 另外我在.profile 中设置了 XDG_DOWNLOADS_DIR=/home/thsea/dls 然后就遇到了这个问题,只要一打开firefox的setting firefox就会自动在家目录创建Downloads这个默认文件夹 但是我明明已经配置了其他的了啊,我看源码,它是会先检查用户配置,失败才会创建这个默认的啊. 所以我就搞不懂问题出在哪里,只好求助你们

not all windows appear in the drop down "window" menu, and a different number when each window is on top. Weird.

Using Mac OSX. Nothing is "full screen." Seems to be nothing to do with if a window is minimized or not.

I have restarted. Recently updated, and lost profile, but recovered it, but lost all my open windows & tabs, so now I have only 5 windows open. Seems to be nothing to do with if a window is minimized (OSX) or not. Needs a better mechanism to save open windows & tabs along with profile data.

Mozilla is using an old email address ([email removed]@icloud.com) and won’t allow me to add a valid email I use daily. ([email removed]@gmail.com) which it says is invalid when I try to add it as a secondary email.

Losing my mind on this one.

Have 2 Macs I use at home, both running FF 141.0 and Sequoia 15.5.

Use Reader for RSS and Airmail for eMail. Both have settings to allow links clicked in those programs to open browser tabs in background. Handy way of banging through newsletters and RSS feeds before shifting to browser.

One on Mac, that open in battleground setting on both apps works as it has for, oh, last several years. On the other Mac, a few days ago that open in background stopped working with Firefox. It does work properly on Chrome and Safari if I set them as default browser (and, as I mentioned above, on my other Mac).

I've tried resetting Firefox on this Mac using the troubleshooting menu and have also cleared the Firefox cache. I even tried resetting the launch database in that Mac, although the fact Chrome and Safari are working fine suggests the OS isn't the culprit.

I'm unaware of having changed any settings, but am aware that "idiot user" may be the issue.

Regardless of how this happened, any ideas how to sort this annoyance out? Thanks!

I'm using Firefox 141.0 on OpenSuse Tumbleweed with KDE and Wayland. I'm using Firefox with two profiles: work and personal - which is (usually) awesome, until suddenly it's not.

Then, one or both profiles seem to become corrupted, and closing firefox, opening it, choosing either profile just hangs forever. My old tabs show up, but clicking on any tab, for any site, just hangs forever, and no page is ever loaded. Sometimes restarting helps, but sometimes not. Sometimes restarting 2 or 3 times and then suddenly it will work. But normally, I have to just delete all my profiles, and re-create them. Fortunately everything is synced with Firefox sync. Then everything will work wonderfully for a bit - although I have to re-login to everything.  :-(

Any ideas? This is a huge pain and productivity killer. I really love firefox, but this sucks.