It seemed to me that "Yahoo was stagnating for years"
not because of employees working from home, but, overall, because of poor and insufficient management.
After Terry Semel, and before Marissa Meyer, there were 5 Yahoo CEOs who stayed less than 2 years each.
Nothing has changed, apparently. Marissa Mayer's second-in-command 'leaves with $109m' on being fired from Yahoo after just 15 months.
The rapid changes in management continue, that time with a $109,000,000 loss for Yahoo. (What management arrangement allowed a poor manager, someone who was so bad he was fired, to make $7,266,666 per month
When Google stopped paying Mozilla Foundation $300,000,000 each year
, Mozilla Foundation took money from Yahoo to sneakily "update" Firefox so that it uses "Yahoo search". Yahoo search is actually Microsoft's Bing search. A quote from Marissa:
"I'm thrilled to announce that we've entered into a five-year partnership with Mozilla to make Yahoo the default search experience on Firefox across mobile and desktop," Yahoo Chief Executive Marissa Mayer said in a blog post Wednesday. "This is the most significant partnership for Yahoo in five years."
Now, somehow, the Firefox and Thunderbird user interfaces have been degraded. Firefox no longer allows making a duplicate tab from a tab; it is necessary to right-click on a web page to make a duplicate; that doesn't work well because it is necessary to find a place on the web page that is not a link.
Thunderbird and SeaMonkey composer now have the Save-As bug.
So, Microsoft paid Yahoo. Yahoo paid Mozilla Foundation to trick users into using Microsoft's Bing search engine. And now Mozilla Foundation is apparently allowing the degradation of its products. Apparently Microsoft wants Firefox and Thunderbird to be degraded that so there will be more users of Microsoft's browser and email software.
The sneaky tactic is not working: American Firefox users dump Yahoo and go back to Google.
Now: Yahoo's Incredible Shrinking Profitability In Its Core Business
(Forbes, March 1, 2015).