Hi. I purchased Choosy years ago and stopped using it for a reason I can't remember. But I downloaded it again today and I was happy to find out that my license is still valid.

Anyway, I have a suggestion for the Behaviour options.

Right now there are only options for "When one or more browsers are running,.."

However, I'd like there to be separate options for when one browser is running and for when more than one browser is running.

For instance, I normally just have Safari running as my only browser. When Safari is the only browser running, I don't want Choosy to suggest another browser. So I'd like to select "Use my favourite browser" when only one browser is running.

However, sometimes I also run Chrome. So, when both Safari and Chrome are running, I'd then like Choosy to give me a choice.

Right now, Choosy's Behaviour settings don't allow for a difference when one browser is running and when multiple browsers are running.

When clicking a link in e.g. Mail, it's horrible to be teleported to a workspace where I have other Chrome windows because Chrome insists on opening new windows in a new tab in a new window. This script used to work (and I was able to make Choosy use it), but now it ends up creating a second instance of Chrome (wow, had no idea that was possible with any Mac app!!). This new instance doesn't have my bookmarks and is not logged into the sites where the "original" chrome instance is logged in. That wasn't a problem before, It may have been a Chrome update that broke it, but I noticed it around the time of a recent update of Choosy...

It would be great if you could make FileMaker google oauth play nice with a secondary browser, e.g. Vivaldi. I get as far as getting the rule to work: w.o.w. Vivaldi opens, automatically accepts, FileMaker continues the login... but Vivaldi stays open with the window open as well. And this is exactly the outcome that I want to avoid. After 10 auths there are windows all over the place. It would be nice if the operation works just like the browser is the default browser: if it is not open, it starts, opens the auth window, authenticates, closes the window, quits. The solution might be to include an option in the rule to close the browser after a given number of milliseconds.

Choosy v1.2.2
Chrome Version: 62.0.3202.62 (Official Build) beta (64-bit)
macOS 10.13

Steps to reproduce:
1. Several Chrome windows opened (chrome has a pending update)
2. Launched link with Chrome (via Slack > Choosy)
3. Tried removing and adding chrome back to choosy browser list but issue persists

Expected:
1. New tab opened in most recently active window, url is visited

Actual Result:
1. New empty window launched, url not visited

Reported System Error:
{subsystem: 'com.apple.launchservices', category: 'default', description: 'LSExceptions shared instance invalidated for timeout.'}

ps, love your app

p.p.s the ajax request event (triggered while trying to type a title) is really slowing down this page's performance on my machine. Pinwheels every time it's fetching results in the middle of typing