Firefox Community Forum

Why in the world am I seeing these tab Groups and Studies

After reading some posts on here I went to about:config and browser.tabs.groups.enabled was set to True. I changed it to false. I never set it to True and haven’t a clue to what Tab Groups are and don’t see any reason for me to have them. I only use about 4 tabs and have no use for any more. But I was noticing a Blue square box next to a tab and clicked on it and it said I had a Tab group which I deleted. Don’t know how a tab group was built, I sure didn’t ask for one and haven’t a clue what they are???

While researching this I seen something that about:studies could be the problem. I looked at it and it showed I was or had been in 4 studies!! All of the studies showed completed. I did not join or ask to be in any studies, what is Firefox doing signing me up for studies? I went to Privacy and Security and nothing under Firefox Data Collection and Use is checked including install and run studies. I have people’s secured data on here and if it gets out I could be sued!

I have run 3 full scans of different virus and all is clear. This must be something Firefox is doing without asking me for permission. I did find that browser.tab.groups.enabled was true, so I know FF must have done that during an update and I set it to False. Some post say FF will change it back to True?

What is really strange is the studies, it says they did 4 that are completed, yet it was not checked in the Privacy and Security section. Can't tell when as there is not a date.

These were the studies:

prefflip-push-performance-1491171•Complete hotfix-reset-xpi-verification-timestamp-1548973•Complete hotfix-reset-xpi-verification-timestamp-1548973•Complete pref-flip-screenshots-release-1369150•Complete

How do I restore the user-friendly, logical, dropdown bookmark menu? I hate (putting it mildly) having to open a sidebar window every time I want a bookmark not on my "immediate access" bookmark bar. If this cannot be done, how do I regress to a version that has it?

How to disable the Enterprise Roots preference-have tried everything I can find on this issue. In summary, deleting certificate via reg edit but this does not work, have to delete certificate every time I re start windows 11 desk top pc.

Any other advice? Thanks

https://support.mozilla.org/en-US/kb/how-disable-enterprise-roots-preference

Hi. I have followed the instructions on the Mozilla site above however this does not work. The Enterprise Roots keep reloading after a while.

Any idea how to stop this happening?

I have read many articles on this but nothing works. The E Roots will in initially not reload but eventually after a day or three its back.

Many thanks

Firefox is running on the front, while I am RDP doing something else, it suddenly prompt for requesting to send cert, I am curious what's it. I did not do anything.

suspend any 3rd party addon, but not sure the way to nail down the issue.

🔐 Client Certificate Request Prompt

The website 3gw.inet.co.th is requesting that you identify yourself using a client certificate. 📄 Details of the Selected Certificate

   Certificate name: trust_8d4510b6-fb24-4718-8497-4dfe9c028c16

   Serial number: 00:B9:F1:2E:22:9A:6D:60:9E

   Validity period:

       Start: Feb 21, 2025, 11:53:14 AM GMT+8

       End: Feb 21, 2026, 11:53:14 PM GMT+8

   Issued to: CN=trust_8d4510b6-fb24-4718-8497-4dfe9c028c16

   Issued by: Same as above (self-issued or internally issued)

   Stored on: OS Client Cert Token (meaning it is stored in the system's certificate store)

   Email / Key usages: Not specified in this view

Hello, I have a web application that can send a base64 data, it crashes in mswsock.dll when data is big than 3Mo. I don't face this issue on other browsers. Appreciate in advance your help.

Hi Team,

I’ve successfully built Firefox v135 from source on our internal development RISC-V64 platform running on Ubuntu 22.04 with GNOME 42.9 (Xorg & Wayland), Our RISC-V Development platform does include a GPU HW which support HW Acceleration for GNOME & other 3rd Apps (Supporting X & Wayland), and Work seamlessly without any issues.

The FireFox v135 Application (via ./mach run) starts up normally. But the major issue I'm observing is that Firefox browser is very slow and laggy, especially during search operations and video playback on YouTube I see a poor performance. Upon further check I found that the most of the work is getting done over the CPU and the utilization is quite high, which is causing the FireFox to perform poorly. I also did try to switching to "Use hardware acceleration when available" in the Mozilla FireFox Settings, but still there is no difference with or without this check and Mozilla FireFox browsing Experience is very poor.

Kindly do let me know how we can enhance and improve the overall performance of FireFox Browsing Experience on my RISC-V platform. Any Support and Help is highly appreciative!

Attached a Build Steps and Configuration used for building Mozilla FireFox v135 on my RISC-V64 platform, let us know if there is anything missed. Thank you!

**BUILD STEPS**

1. Clone the Firefox source (v135.0.1):

git clone --branch FIREFOX_135_0_1_RELEASE --single-branch --depth 1 https://github.com/mozilla-firefox/firefox.git cd firefox

2. Install required dependencies:

sudo apt-get update sudo apt-get install -y curl python3-dev libnspr4 libgtk-3-dev llvm-14 llvm-dev clang libclang-dev libx11-xcb-dev libevent-dev libdbus-glib-1-dev m4 libnspr4-dev meson

3. Install Rust:

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh source $HOME/.cargo/env

4. Install Python and Rust-related tools:

pip install --upgrade pip pip install uniffi-bindgen referencing==0.29.1 cargo install cbindgen

5. Apply the RISC-V compatibility patch:

patch -Np1 -i firefox-riscv64-hack.patch

6. Create the mozconfig file with custom build options:

ac_add_options --with-app-name=firefox ac_add_options --disable-release ac_add_options --enable-hardening ac_add_options --enable-rust-simd ac_add_options --enable-linker=bfd ac_add_options --disable-bootstrap ac_add_options --enable-official-branding ac_add_options --with-branding=browser/branding/official ac_add_options --enable-update-channel=release ac_add_options --with-unsigned-addon-scopes=app,system ac_add_options --allow-addon-sideload ac_add_options --enable-default-toolkit=cairo-gtk3-wayland ac_add_options --with-system-zlib ac_add_options --disable-strip ac_add_options --disable-install-strip ac_add_options --enable-system-ffi ac_add_options --with-system-libevent ac_add_options --with-system-nspr

1. ac_add_options --with-system-nss

ac_add_options --disable-updater ac_add_options --disable-tests ac_add_options --enable-alsa ac_add_options --without-wasm-sandboxed-libraries

7. Vendor Rust dependencies:

./mach vendor rust --ignore-modified

8. Upgrade Cairo from 1.16.0 to 1.18.4:

1. Extract and build Cairo 1.18.4

tar -xvf cairo-1.18.4.tar.xz cd cairo-1.18.4 mkdir build && cd build meson .. --prefix=/usr/local ninja sudo meson install

9. Build Firefox:

cd firefox ./mach build

Regards, Saiteja.

Hi I'm wondering what people think about emails providing links for donations. If the email address is spoofed and the link is malicious were in trouble. So, assuming the email I received today was from Mozilla (and not a spoofed email address, shouldn't Mozilla ask us to visit it's webpage to make a donation rather than email us a link? Regards

возникает проблема при подключении к https://cdn.profitbase.ru/ браузер считает сайт не безопасным, что у него нет ssl правильно подписанного сертификата хотя это не так

bonjour cela fait plusieurs fois que je ne peux accéder a certains sites à cause d un bloqueur de publicité j ai trouvé des solutions sur internet mais je ne trouve pas ad blocker sur mon pc . pouvez vous me guider s il vous plait

I recently purchased a new computer, transferred everything over and everything seemed to going fine until tonight. I accidentally exited Firefox and when I started it again, everything was gone. I closed and tried again, same results. Not only were all open tabs gone, but so was may History. I just someone from the Geek Squad spend over 2 hours working on this, but same results. This setup has worked for years, what did I do wrong?

Mike Taylor

Firefox 139.0.1 (64-bit) on Windows 11

I occasionally increase the zoom level of websites (usually forums) with Ctrl+mouse wheel if the default text size is too small. However, if I forget to set them back to 100% (Ctrl+0) before closing the tab, the next time I open that URL, it's at the former adjusted zoom level -- not 100%. Really annoying.

How do I force Firefox to open all URLs at 100% regardless of the last custom zoom level? I have default zoom already set to 100% in Settings and Zoom Text Only is not enabled.

Thanks.