Firefox Community Forum

When I started using Firefox today, I found that I can't always click to open links. Often right-clicking to open in a new tab works, but I've run into at least one case so far that doesn't.

Examples:

1. the link to go to the log in page for a medical practitioner - right clicking to open in a new tab didn't work, I was able to open it in a private window

2. a "confirm subscription" link in an email - I right-clicked to open it in a new tab

3. I'm logged out of my password manager (Proton Pass) or at any rate when I click on the Proton Pass icon in the toolbar nothing happens - normally it logs in, or if already logged in, then clicking the icon opens the vault.

My computer installed a Windows update yesterday. I haven't futzed with any settings in Firefox or my usual security & privacy extensions recently. Not sure how to start troubleshooting this - aside from turning all of my extensions off just to be sure one of them isn't causing the problem.

1. Why can't I write from one of my accounts but do it from everyone else? I get the following messages and when I talked to one.com they said that I have to update my password for the outgoing server, but I don't know how to do that. I've tried to delete the account several times and even restarted my computer in between, but it will still not work. I´ve installed several accounts from one.com without any problems - both before and after - this one: eva.swahn@one. Now I have to open the webmail every time I want to answer a mail to that address, which is quite tiresome... :/

2. Why can´t I add a web node-account to my Thunderbird? I've followed the instructions on Web node's help site, but Thunderbird still won't let me add the account.

Please, please help!!!

Best regards/Eva

I’ve added an iFrame to my website, but it’s not displaying in Firefox—although it works fine in other browsers. Here’s the link to the page: https://hoploninfosec.com/ibm-flashsystem-5300/ Can anyone help me figure out why it's not showing up in Firefox and how to fix it?

I updated FireFox to Firefox 137.0.1 (20250407111027) from Firefox 136.0.4 (20250326231000). Then, any time I would open ChatGPT, the text input box has been squished to ~30% of it's size which is resulting in formatting errors when copy pasting code or text from ChatGPT. I have the Zoom set to default settings, cleared cookies, and restarted firefox but the problem still persists. Is anyone else having a similar issue?

I left my computer for a while, and when I returned and took it off screensaver I started going through my emails when I noticed that the bookmarks on the toolbar are missing. The toolbar is present, and I toggled between only show on new tab, never show and always show a few times, but they're still missing. I even tried bookmarking two webpages, but they were not added to the toolbar. As stated, I have the bookmark toolbar to always show. Firefox just updated yesterday, 4/8/25 to 130.1.0, and I'm pretty sure that they were there this morning, but I can't be totally sure. I noticed my computer had updates available, so knowing updating it would not have any effect on Firefox, I restarted the computer while updating so I could also restart Firefox with a bit of a delay. I had also restarted it twice before without any luck. The only thing I did besides updating Firefox was enabled the sidebar, which I then turned off and still did not have any bookmarks in the toolbar. Any assistance would be greatly appreciated, but I may not be able to view and any responses or make the stated changes until Friday.

I am currently working on my husband's computer. He has lost all his bookmarks after a FF update and a Windows update. I can see all the information on my computer and I have sync turned on his computer. I used different searches, but found that not all the information related to current updates. I have tried sync now (nothing changes) and tried to look at different files, but have gotten completely lost. I wondered if there is a step-by-step guide that you could recommend. Any help would be appreciated.

I am not sure how I did it, but bookmarks and all synced data is back. I no longer need an answer, but don't know how to delete the question.

Noticed 3 entries for various versions of Firefox in the Windows Settings > Apps > Installed apps. There is one Firefox record in the Start menu. 1. I have unistalled all the entries through the Windows Settings, deleted all folders for Moxilla and Firefox, cleaned the registry of every mention of Mozilla or Firefox. 2. Installed newly downloaded Firefox 137.0 three days ago. 3. After today update to v. 137.0.1 - I again have 2 entries in the Settings > Apps > Installed apps: v. 137.0 and v. 137.0.1. The same problem was with Thunderbird. I also cleaned all the folders and the Registry, then fresh installed it again. Thunderbird was not updated, so I don't know if the problem has returned. Maybe something is wrong with the Mozilla installer? What should I do to have just one Mozilla Firefox entry in the Windows Settings > Apps > Installed apps after update as it was years before? (My system is: Windows 11 Pro 24H2 English US, Firefox 64-bit English US)

Additional information: I found that the Uninstall registry entries are stored in different hives: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Mozilla Firefox 137.0 (x64 en-US) HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\Mozilla Firefox 137.0.1 (x64 en-US)

I'm trying to exlpore https://support.mozilla.org/en-US/kb/firefox-labs-explore-experimental-features-firefox

but I can't see this option in my Setttings. I have already verified I have telemetry and studies enabled.

I am also running the latest Firefox version. Can you please assist?

Best, Martin

Secure Connection Failed

An error occurred during a connection to defencetravelsystem.gov.in. SSL peer was unable to negotiate an acceptable set of security parameters.

Error code: SSL_ERROR_HANDSHAKE_FAILURE_ALERT

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

Some of my bookmarks are gone AGAIN. This time adding .old to files and deleting others did not fix the problem, nor has restarting firefox. I can see that sites have blue stars, indicating that they are saved into bookmarks (such as "weather") that I can no longer see in my bookmarks menu. Trying to recover bookmarks does not work. I can see recent dates of bookmarks. I can see old firefox data on my desktop.

Bookmarks are a basic function of browsers. This is RIDICULOUS. Please fix this issue.

I have not had ANY UPDATES to my computer since yesterday. Yesterday all my bookmarks were there!

https://us06web.zoom.us/rec/share/egAi5yy5wG48fjQwPUJdAT0ufHOLgSyeg7mXcfwUvqhpyvgSyvDWF2aqwsYvH1Da.bUXvejBjBLrMw1Yg

I'm working onoptimizing a web application optimizing a web application and noticing some performance lags (e.g., slow page load and laggy interactions) specifically in Firefox.

I’ve used Chrome DevTools for performance profiling before, but I’m not as familiar with Firefox’s tools. I see there's a Performance tab, but I’m not sure how to interpret the flame chart, event markers, or how to pinpoint what's causing the slowness.

Can someone guide me through the process of debugging performance issues debugging performance issues in Firefox Developer Tools? Specifically:

How to profile JavaScript execution?

How to identify slow rendering or layout shifts?

Any tips for using the memory and network panels effectively?

I’m using Firefox version XX.X on [OS], and this is a React-based app.

Any tips, resources, or walkthroughs would be appreciated!