Firefox Community Forum

I uploaded some videos to my website (burchmusic.com). They can be played on Safari, but not on Firefox. This is the error message I get: No video with supported format and MIME type found. I'm on MacBookPro running OS Sequoia 15.2.

Recently got this new pc built with an AMD ryzen 5 8500g, 16gb ram 5200mhz if that matters. While using firefox, the browser itself would stop responding and crash or sometimes just hang. I reinstalled firefox and it fixed the crashing and hanging, however a couple of hours ago while playing a browser game the computer reset itself completely Is there any way this can be fixed? I've tried some methods but i'm willing to try them again

after downloading latest Firefox, suddenly seeing a looooooooong list of commands which were not there earlier.(see on the right). all these additions are not described in the changes summary! further, the command "Take screenshot" does not work. the earlier extension for screenshots which i had is also not to be seen. so added moravi screenshot but unable to take any screenshot, full or part.

The context menu, which I use to select if I want to open a link in another tab (which I do a lot) or in another window (which I do with great regularity) is over flowing with 50+ items. This is beyond ridiculous! A context menu is supposed to provide you functions related to what you are doing. When I just misspelled a the same 50+ options came up. When I right click I expect the context menu, that will work. When I right click on a link and select either open in a "new tab" or "open in a new window" NOTHING happens. When I right click on a misspelled word I do not get a proposed correct word. The context menu is either broken or really needs an overhaul. This just started today after Firefox updated to 134.0

Wasted a lot of my time trying to figure out California DMV registration renewal in firefox. Would not complete transaction. Forced to use chrome instead. So, why should I continue firefox if I'm being forced to use chrome?

Please note that I have Autism, please be gentle and if telling me how to do it, give simple instructions like below, thank you.

Aim: The goal is to disable Private Browsing mode in Firefox, ensuring that it cannot be used on the system.

I have spent hours on this. With no luck.

1. 1. 1. Steps Attempted:

1. **Adjusting Settings**:

  - Open Firefox.
  - Click on the hamburger menu (three horizontal lines) in the top-right corner.
  - Select "Options" or "Settings".
  - Go to "Privacy & Security".
  - Uncheck the box next to "Always use private browsing mode".
  - Restart Firefox.

2. **Modifying History Settings**:

  - Open Firefox.
  - Click on the hamburger menu (three horizontal lines) in the top-right corner.
  - Select "Options" or "Settings".
  - Go to "Privacy & Security".
  - Scroll down to the "History" section.
  - Change the setting to "Use custom settings for history".
  - Uncheck the box next to "Always use private browsing mode".
  - Restart Firefox.

3. **Using about:config**:

  - Open Firefox.
  - Type `about:config` in the address bar and press `Enter`.
  - Accept the Risk and Continue.
  - Search for `browser.privatebrowsing.autostart`.
  - Double-click on it to change the value to `false`.
  - Restart Firefox.

4. **Creating a New Firefox Profile**:

  - Open Firefox.
  - Type `about:profiles` in the address bar and press `Enter`.
  - Click on "Create a New Profile" and follow the prompts.
  - Launch the new profile in a new browser.
  - Go to "Privacy & Security" settings and ensure "Always use private browsing mode" is unchecked.
  - Restart Firefox.

5. **Refreshing Firefox**:

  - Open Firefox.
  - Click on the hamburger menu (three horizontal lines) in the top-right corner.
  - Select "Help" and then "More Troubleshooting Information".
  - Click on "Refresh Firefox" and confirm.
  - Firefox will reset to default settings and restart.

6. **Checking Firefox Policies**:

  - Open Firefox.
  - Type `about:policies` in the address bar and press `Enter`.
  - Review any active policies that might be enforcing Private Browsing mode.

7. **Uninstalling and Reinstalling Firefox**:

  - Uninstall Firefox from your system.
  - Download the latest version from Mozilla's official Firefox download page.
  - Reinstall Firefox and check if the issue is resolved.

8. **Registry Edit (Windows)**:

  - Press **`Win + R`** to open the Run dialog.
  - Type **`regedit`** and press **`Enter`** to open the Registry Editor.
  - Navigate to the following key:
    ```
    HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Mozilla\Firefox
    ```
    - If the `Mozilla` or `Firefox` keys do not exist, you'll need to create them:
      - Right-click on the **`Policies`** key.
      - Select **`New > Key`**.
      - Name the new key **`Mozilla`**.
      - Right-click on the **`Mozilla`** key.
      - Select **`New > Key`**.
      - Name the new key **`Firefox`**.
  - Right-click on the **`Firefox`** key.
  - Select **`New > DWORD (32-bit) Value`**.
  - Name the new value **`DisablePrivateBrowsing`**.
  - Double-click on the **`DisablePrivateBrowsing`** value.
  - Set the "Value data" to **`1`**.
  - Click **`OK`** to save the changes.
  - Restart your computer to apply the changes.

These steps represent a comprehensive attempt to disable Private Browsing mode in Firefox.

I recently swapped to Firefox (113.0) from Chrome.

I'm trying to open my employer's website (https://www.accenture.com/us-en) but it doesn't load on Firefox.

It's not an internet issue as I can open up Edge and it will load instantly. Firefox gives the "this page is slowing down Firefox" message

I tried turning off my extensions (I have uBlock) without it making a difference.

A Windows 7 computer, on being restarted from an overnight rest will nor open local files but will open URL referenced files. All Firefox Extensions have been removed. There was no problem before the computer was turned off. This computer can also open in Windows XP. It performs well in XP.

It seems that every time there is a firefox upgrade it destroys my ebay auction pages. Everything is thrown to the left of the screen and it makes for a difficult read on the page. Please help me fix this.

cant find how to add another account, every help thing i find seems to be outdated. i have multiple accounts i use on chrome, and want to move some to here, but i need help finding how