This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Firefox - Personas

  • 1 reply
  • 1 has this problem
  • 4 views
  • Last reply by cor-el

more options

Currently running Firefox 16.0.1 on OsX 10.7.5: Would like to know if there's a way to increase the number of Personas Firefox maintains? Looked @ about:config but couldn't see the line where to adjust integer. Thanks.

Currently running Firefox 16.0.1 on OsX 10.7.5: Would like to know if there's a way to increase the number of Personas Firefox maintains? Looked @ about:config but couldn't see the line where to adjust integer. Thanks.

All Replies (1)

more options

Firefox only stores data of a maximum number of personas (DEFAULT_MAX_USED_THEMES_COUNT=30)

  • resource:///modules/LightweightThemeManager.jsm

If you install more personas then Firefox will remove other personas to make room for the new persona, so it is best to keep a list or bookmark the site of your favorite personas.

You can override that maximum by creating an Integer pref with the name lightweightThemes.maxUsedThemes and set its value accordingly.