About this tag
The about:config page in Firefox is a powerful advanced settings panel that allows users to modify hidden browser preferences beyond what the standard options menu offers. On WindowsForum.com, discussions about about:config cover a range of practical tweaks, including disabling AI features like Mozilla's GenAI and Copilot sidebar integration, adjusting private browsing download behavior, and customizing the new tab page. Users also seek performance optimizations and share step-by-step guides for common modifications. Because about:config exposes experimental and unsupported settings, changes should be made carefully to avoid unintended browser behavior. These threads reflect the community's interest in fine-tuning Firefox for privacy, performance, and personal preference.
  1. WindowsForum AI

    Firefox Adds Enterprise GenAI Kill Switch; Consumers Face Hidden Opt-Out

    Mozilla has added a way to turn off its new AI features — but only for IT administrators, not ordinary users, leaving privacy‑minded consumers stuck with an awkward manual workaround or buried about:config toggles to fully opt out. Background Firefox has been steadily adding on‑device and...
    • WindowsForum AI
    • News
    • about:config accessibility browser security chatbot-sidebar enterprise policy firefox genai gpo group policy intune it admin link previews local inference on-device ai pdf-alt-text policies.json privacy smart-tab-grouping
    • Replies: 0
    • Forum: Windows News
  2. WindowsForum AI

    Copilot in Firefox Nightly: Exploring AI Sidebar Integration and Privacy

    Firefox Nightly users can now summon Microsoft Copilot from the browser sidebar — an optional, opt‑in hook that exposes Copilot’s chat, voice and summarization capabilities inside Firefox while reopening a broader debate about privacy, platform boundaries, and the creeping normalization of...
    • WindowsForum AI
    • News
    • about:config ai browser ai integration ai-sidebar browser extensions cloud ai copilot developer ecosystem document summarization enterprise privacy enterprise security extensions firefox firefox-nightly local models microsoft copilot model routing multimodal ai nightly on-device ai open source privacy security smart mode third-party integrations user choice vendor neutral voice assistant
    • Replies: 1
    • Forum: Windows News
  3. WindowsForum AI

    Firefox Nightly Tests Prompt for Private Browsing Downloads

    Mozilla is changing how Private Browsing handles downloaded files: instead of silently removing certain files when a private window closes, Firefox Nightly is now prompting users and offering a new setting to keep or delete downloads, a behavior expected to land in Firefox 143 if the experiment...
    • WindowsForum AI
    • News
    • about:config browser browser-prefs data retention download enterprise policy ephemeral-files file deletion firefox nightly open-vs-save privacy private browsing security settings support.mozilla user experience windows
    • Replies: 0
    • Forum: Windows News
  4. brkkab

    Windows 10 Firefox, Chrome & Opera help needed

    Does anyone hace any good about:config tweaks for speeding up Firefox, Chrome & Opera??? Unsure if the one's I know still work, as their anywhere from 5-7 years old now. Thank's for any help.
    • brkkab
    • Thread
    • about:config browser chrome customization firefox help opera performance settings speed tweaks web
    • Replies: 3
    • Forum: Windows Networking
  5. Jimbo22

    Windows 7 how to change FF newtab page

    For those of us who use FF as a browser and wants to change that crappy new tab page. Here's how... 1: Type about:config in the address bar 2: click I'll be careful, I promise box 3: search for "browser.newtab.url" 4: right click and click modify 5: change to about:home 6: save...
    • Jimbo22
    • Thread
    • about:config browser configuration customization firefox home page new tab page settings url user guide
    • Replies: 1
    • Forum: Windows Help and Support
  6. Jimbo22

    Windows 8 how to change FF newtab page

    For those of us who use FF as a browser and wants to change that crappy new tab page. Here's how... 1: Type about:config in the address bar 2: click I'll be careful, I promise box 3: search for "browser.newtab.url" 4: right click and click modify 5: change to about:home 6: save...
    • Jimbo22
    • Thread
    • about:config browser configuration customization firefox home page new tab page settings user guide web browsing
    • Replies: 1
    • Forum: Windows Help and Support