The actress, whose character Heather Trott was killed by Ben Mitchell, believes that her character was "worth being killed off" given the cast's performance in recent weeks.
She tweeted this morning: "Think Steve McFadden (Phil) and Linda Henry (Shirley) have been fantastic on Enders and it was really nice to see Hev's hen night VT - loving Josh [Pascoe] who plays Ben.
"And Jamie [Borthwick] is great as Jay it has been fab watching the fallout if all this Adam Woodyatt (Ian) also brilliant strong storyline and worth being killed off for truly (sic)."
Fergison also admitted that she is unaware of the storyline's conclusion, despite asking Henry and McFadden.
The 48-year-old added: "They are doing a fab job can't wait to see what happens next. Talk to Linda and Steve often and they can't tell me."
This week in Walford, Ben confessed about Heather's murder to Ian Beale, sending the Albert Square stalwart into a meltdown.