v2.7.5

This fix is to help address some user feedback received about the closing of Slack related pages. Here's how the new regex for Slack works: (?!(app\\.slack\\.com|slack\\.com|.*\\/(customize|account|apps)(\\/|$)|.*\\/home(\\/|$))) is a negative lookahead assertion, to match only if the string following does not match the patterns inside the group. app\\.slack\\.com excludes URLs starting with "app.slack.com" to make sure the web client can successfully stay open. slack\\.com excludes the base Slack website. .*\\/(customize|account|apps)(\\/|$) and .*\\/home(\\/|$) exclude URLs containing '/customize/', '/account/', '/apps/' or '/home' either followed by a slash or the end of the string—this is to avoid TabCloser from closing in-browser settings and config pages for Slack.