firefox.md

Firefox

Misc. about:config settings

• Say “goodbye” to cookies and cookie banners with vanilla Firefox
• How do I disable middle mouse button click paste?

browser.bookmarks.showMobileBookmarks: false
browser.toolbars.bookmarks.showOtherBookmarks: false

# Auto-reject cookie banner prompts
cookiebanners.service.mode: 1
cookiebanners.service.mode.privateBrowsing: 1

# Don't paste on middle-click
middlemouse.paste false

Credit card autofill / autocomplete

• Mozilla wiki
• Mozilla support
• Reddit

about:config settings:

extensions.formautofill.available: true
extensions.formautofill.creditCards.available: true
extensions.formautofill.creditCards.enabled: true
extensions.formautofill.supportedCountries: 'US,CA'

Right-click bug with BSPWM

Right-click automatically selects the option under the mouse when the mouse button is released. This makes it difficult to use the right-click context menu. This bug only occurs in certain window managers such as BSPWM or i3 when the firefox window is not fullscreen.

about:config workaround:

ui.context_menus.after_mouseup: true

• bugzilla issue
• reddit discussion

Add-ons (browser extensions) in Firefox Nightly on Android

• Expanded extension support in Firefox for Android Nightly
• Firefox add-ons
• Andornaut's add-on collection

In Firefox Nightly for Android:

1. Settings -> About Firefox Nightly
2. Tap the logo 5 times
3. Back in Settings, click Custom Add-on collection
4. Enter eg. Collection owner: 16021357, Collection name: android

Bypass HSTS HTTPS/TLS certificate error

1. Quit Firefox
2. Edit ~/.mozilla/firefox/${profileName}/SiteSecurityServiceState.txt
3. Delete lines that begin with the domain in question
4. Open Firefox and navigate to the site. You can now bypass the security warning by clicking a button.